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CVE-2026-119600EUVD-2026-113937GHSA-RJCG-FCJ6-3HQ4

tcpflow through 1.6.1 Out-of-Bounds Read via TCP Demultiplexer Payload Length

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub

Summary

tcpflow, a tool for capturing and reconstructing TCP network traffic, is affected by this flaw. An unauthenticated attacker can send specially crafted network packets or inject them into captured traffic or pcap files to read memory the program should not access, potentially exposing sensitive data in the output files, or crash the tool.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • simsong tcpflow

    through 1.6.1

References 6

GitHub · simsong/tcpflow

hackmd.io

vulncheck.com