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3 vulnerabilities found for SIMATIC S7-200 SMART CPU SR20 by Siemens
CVE-2025-40820 (GCVE-0-2025-40820)
Vulnerability from cvelistv5 – Published: 2025-12-09 10:44 – Updated: 2025-12-09 15:55
VLAI
EPSS
VEX
Summary
Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to interfere with connection setup, potentially leading to a denial of service. The attack succeeds only if an attacker can inject IP packets with spoofed addresses at precisely timed moments, and it affects only TCP-based services.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-09 15:52 UTC
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
References
1 reference
Impacted products
145 products
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},
{
"defaultStatus": "unknown",
"product": "SIMATIC ET 200MP IM 155-5 PN HF",
"vendor": "Siemens",
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{
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"status": "affected",
"version": "V4.2.0",
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}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC ET 200pro IM 154-8 PN/DP CPU",
"vendor": "Siemens",
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{
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{
"defaultStatus": "unknown",
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{
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{
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{
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{
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{
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{
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{
"defaultStatus": "unknown",
"product": "SIMATIC Power Line Booster PLB, Base Module",
"vendor": "Siemens",
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{
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{
"defaultStatus": "unknown",
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{
"defaultStatus": "unknown",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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]
},
{
"defaultStatus": "unknown",
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{
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]
},
{
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{
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{
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{
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},
{
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{
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]
},
{
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"vendor": "Siemens",
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{
"lessThan": "*",
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]
},
{
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{
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]
},
{
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"vendor": "Siemens",
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{
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]
},
{
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{
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"product": "SIPLUS S7-300 CPU 315F-2 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-300 CPU 317-2 PN/DP",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
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]
},
{
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"product": "SIPLUS S7-300 CPU 317F-2 PN/DP",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
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}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-400 CPU 414-3 PN/DP V7",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
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]
},
{
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"product": "SIPLUS S7-400 CPU 416-3 PN/DP V7",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIWAREX WP231",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIWAREX WP241",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
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}
]
},
{
"defaultStatus": "unknown",
"product": "SIWAREX WP251",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIWAREX WP521 ST",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
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}
]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to interfere with connection setup, potentially leading to a denial of service. The attack succeeds only if an attacker can inject IP packets with spoofed addresses at precisely timed moments, and it affects only TCP-based services."
}
],
"metrics": [
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"baseScore": 7.5,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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CVE-2024-43647 (GCVE-0-2024-43647)
Vulnerability from cvelistv5 – Published: 2024-09-10 09:36 – Updated: 2024-09-10 14:52
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in SIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1) (All versions). Affected devices do not properly handle TCP packets with an incorrect structure. This could allow an unauthenticated remote attacker to cause a denial of service condition. To restore normal operations, the network cable of the device needs to be unplugged and re-plugged.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 14:39 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | SIMATIC S7-200 SMART CPU CR40 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU CR60 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR20 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR30 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR40 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR60 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST20 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST30 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST40 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST60 |
Affected:
0 , < *
(custom)
|
|
| siemens | simatic_s7-200_smart_cpu_st60 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr20s:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr30s:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40s:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60s:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr20:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr30:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr40:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr60:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st20:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st30:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st40:-:*:*:*:*:*:*:* cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st60:-:*:*:*:*:*:*:* |
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{
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"vendor": "Siemens",
"versions": [
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{
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"versions": [
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{
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{
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"status": "affected",
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{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
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"lessThan": "*",
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{
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"versions": [
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"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
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"descriptions": [
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"lang": "en",
"value": "A vulnerability has been identified in SIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1) (All versions). Affected devices do not properly handle TCP packets with an incorrect structure. This could allow an unauthenticated remote attacker to cause a denial of service condition. To restore normal operations, the network cable of the device needs to be unplugged and re-plugged."
}
],
"metrics": [
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"baseScore": 7.5,
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"providerMetadata": {
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CVE-2024-35292 (GCVE-0-2024-35292)
Vulnerability from cvelistv5 – Published: 2024-06-11 11:15 – Updated: 2024-08-02 03:07
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in SIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1) (All versions). Affected devices are using a predictable IP ID sequence number. This leaves the system susceptible to a family of attacks which rely on the use of predictable IP ID sequence numbers as their base method of attack and eventually could allow an attacker to create a denial of service condition.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-11 17:27 UTC
CWE
- CWE-330 - Use of Insufficiently Random Values
Assigner
References
1 reference
Impacted products
20 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | SIMATIC S7-200 SMART CPU CR40 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU CR60 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR20 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR30 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR40 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU SR60 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST20 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST30 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST40 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-200 SMART CPU ST60 |
Affected:
0 , < *
(custom)
|
|
| siemens | simatic_s7-200_smart_cpu_cr40 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_cr60 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_sr20 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr20:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_sr30 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr30:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_sr40 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr40:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_sr60 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr60:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_st20 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st20:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_st30 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st30:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_st40 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st40:-:*:*:*:*:*:*:* |
|
| siemens | simatic_s7-200_smart_cpu_st60 |
Affected:
0 , < *
(custom)
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st60:-:*:*:*:*:*:*:* |
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{
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"timestamp": "2024-06-11T17:27:42.988765Z",
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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},
"references": [
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"tags": [
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],
"url": "https://cert-portal.siemens.com/productcert/html/ssa-481506.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-200 SMART CPU CR40",
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"versions": [
{
"lessThan": "*",
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},
{
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},
{
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},
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]
},
{
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"vendor": "Siemens",
"versions": [
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]
},
{
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]
},
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"versions": [
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]
}
],
"descriptions": [
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"lang": "en",
"value": "A vulnerability has been identified in SIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1) (All versions). Affected devices are using a predictable IP ID sequence number. This leaves the system susceptible to a family of attacks which rely on the use of predictable IP ID sequence numbers as their base method of attack and eventually could allow an attacker to create a denial of service condition."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:T/RC:C",
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},
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"dateReserved": "2024-05-15T11:21:03.972Z",
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