CVE-2026-119600
mediumtcpflow through 1.6.1 contains an out-of-bounds read vulnerability that allows unauthenticated attackers to read process memory by sending packets with forged…
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
4.8
4.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-30 14:16
Modified: 2026-10-30 19:14
NVD status: Awaiting Analysis
Last synced 1 day ago
Verified against the source API 2026-10-30 19:20 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/simsong/tcpflow disclosure@vulncheck.com
- https://github.com/simsong/tcpflow/blob/tcpflow-1.6.1/src/tcpdemux.cpp#L747 disclosure@vulncheck.com
- https://github.com/simsong/tcpflow/blob/tcpflow-1.6.1/src/tcpdemux.cpp#L781 disclosure@vulncheck.com
- https://github.com/simsong/tcpflow/issues/279 disclosure@vulncheck.com
- https://hackmd.io/@haindpwn/tcpflow-ip-payload-length-oob-read disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/tcpflow-through-1.6.1-out-of-bounds-read-via-tcp-demu... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 19:20 UTC · record ↗