Vulnerability Description
tcpflow through 1.6.1 contains an out-of-bounds read vulnerability that allows unauthenticated attackers to read process memory by sending packets with forged IP payload lengths. Attackers can inject crafted IPv4 or IPv6 TCP packets into captured traffic or pcap files to leak adjacent memory into reconstructed flow files or crash tcpflow.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/simsong/tcpflow
- https://github.com/simsong/tcpflow/blob/tcpflow-1.6.1/src/tcpdemux.cpp#L747
- https://github.com/simsong/tcpflow/blob/tcpflow-1.6.1/src/tcpdemux.cpp#L781
- https://github.com/simsong/tcpflow/issues/279
- https://hackmd.io/@haindpwn/tcpflow-ip-payload-length-oob-read
- https://www.vulncheck.com/advisories/tcpflow-through-1.6.1-out-of-bounds-read-vi
FAQ
What is CVE-2026-119600?
CVE-2026-119600 is a vulnerability with a CVSS score of 4.8 (MEDIUM). tcpflow through 1.6.1 contains an out-of-bounds read vulnerability that allows unauthenticated attackers to read process memory by sending packets with forged IP payload lengths. Attackers can inject ...
How severe is CVE-2026-119600?
CVE-2026-119600 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119600?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.