MajorCritical vulnerability

CVE-2026-125400 (CVSS 8.7)

NVD · officialPublished Nov 10, 2026Risk 37/100

Ettercap through 0.8.4.1 contains a use-after-free vulnerability in func_pcre() in src/ec_filter.c that reads the PCRE2 ovector after freeing match data. Network-adjacent attackers can send packets matching a loaded pcre_regex() substitution filter to corrupt memory and potentially execute code as root.

Technical details

CVSS

8.7

AV:AdjacentAC:LowPR:NoneUI:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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