Buffer overflow in Oisf Suricata

CVE-2024-55627

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.8, a specially crafted TCP stream can lead to a very large buffer overflow while being zero-filled during initialization with memset due to an unsigned integer underflow. The issue has been addressed in Suricata 7.0.8.

Vulnerability class: Buffer Overflow

EPSS: 0.010 (59.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-55627?
CVE-2024-55627 is a medium-severity vulnerability in Oisf Suricata, classified under Heap-based Buffer Overflow. CVSS score: 5.9/10. Published 2025-01-06.
How severe is CVE-2024-55627?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2024-55627 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.