Is there a public exploit for CVE-2026-129431?

No public exploit for CVE-2026-129431 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-129431?

CVE-2026-129431 scores CVSS 7.1 (v4.0), rated high.

What does CVE-2026-129431 affect?

CVE-2026-129431 affects ettercap ettercap.

7.1 High

Ettercap through 0.8.5.1 contains a heap out-of-bounds read vulnerability in dissectorsocks() in src/dissectors/ecsocks.c that allows…

CVE-2026-129431

Ettercap through 0.8.5.1 contains a heap out-of-bounds read vulnerability in dissectorsocks() in src/dissectors/ecsocks.c that allows network-adjacent attackers to read heap memory via unchecked SOCKS5 username/password lengths. Attackers can send a crafted SOCKS5 authentication packet observed by Ettercap to read up to 255 bytes past the heap buffer, disclosing memory printed and logged as captured credentials.

Assessment

CVSS: 7.1 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 14 November 2026
Last updated: 14 November 2026
Affected: ettercap · ettercap
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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