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6 vulnerabilities by libmodbus
CVE-2024-10918 (GCVE-0-2024-10918)
Vulnerability from cvelistv5 – Published: 2025-02-27 11:44 – Updated: 2026-08-01 18:20
VLAI
EPSS
VEX
Title
Stack-based Buffer Overflow in libmodbus library
Summary
Stack-based Buffer Overflow vulnerability in libmodbus v3.1.10 allows to overflow the buffer allocated for the Modbus response if the function tries to reply to a Modbus request with an
unexpected length.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 14:46 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
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CVE-2024-36845 (GCVE-0-2024-36845)
Vulnerability from cvelistv5 – Published: 2024-05-31 19:16 – Updated: 2025-11-03 20:37
VLAI
EPSS
VEX
Summary
An invalid pointer in the modbus_receive() function of libmodbus v3.1.6 allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-06 13:30 UTC
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
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CVE-2024-36844 (GCVE-0-2024-36844)
Vulnerability from cvelistv5 – Published: 2024-05-31 19:16 – Updated: 2025-11-03 20:37
VLAI
EPSS
VEX
Summary
libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend pointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-19 15:22 UTC
CWE
- n/a
- CWE-416 - Use After Free
Assigner
References
Impacted products
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CVE-2024-36843 (GCVE-0-2024-36843)
Vulnerability from cvelistv5 – Published: 2024-05-31 00:00 – Updated: 2025-11-03 20:37
VLAI
EPSS
VEX
Summary
libmodbus v3.1.6 was discovered to contain a heap overflow via the modbus_mapping_free() function.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-22 17:31 UTC
CWE
- n/a
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
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CVE-2024-34244 (GCVE-0-2024-34244)
Vulnerability from cvelistv5 – Published: 2024-05-08 00:00 – Updated: 2024-08-02 02:51
VLAI
EPSS
VEX
Summary
libmodbus v3.1.10 is vulnerable to Buffer Overflow via the modbus_write_bits function. This issue can be triggered when the function is fed with specially crafted input, which leads to out-of-bounds read and can potentially cause a crash or other unintended behaviors.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-09 15:51 UTC
CWE
Assigner
References
1 reference
Impacted products
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CVE-2023-26793 (GCVE-0-2023-26793)
Vulnerability from cvelistv5 – Published: 2024-05-01 00:00 – Updated: 2024-08-02 11:53
VLAI
EPSS
VEX
Summary
libmodbus v3.1.10 has a heap-based buffer overflow vulnerability in read_io_status function in src/modbus.c.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-02 15:26 UTC
CWE
- n/a
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
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"vendor": "libmodbus",
"versions": [
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"attackVector": "NETWORK",
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"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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