Resource exhaustion in Libmodbus

CVE-2024-36845

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (38.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

  • Libmodbus — versions 3.1.6
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-36845?
CVE-2024-36845 is a medium-severity vulnerability in Libmodbus, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2024-05-31.
How severe is CVE-2024-36845?
Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2024-36845 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.