CVE-2026-125404

CVSS 7.7 (high) · published 2026-11-10

Ettercap through 0.8.4.1 contains an integer underflow in ccmp_decrypt() in src/ec_encryption_ccmp.c that subtracts the 8-byte CCMP trailer without checking minimum length. Attackers on a network whose WPA key is loaded can send a short crafted CCMP frame to overflow a stack buffer in the Ettercap process, which normally runs as root.

Weakness: CWE-191

Source: NVD CVE-2026-125404

References

• https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_encryption_ccmp.c#L190-L203
• https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98
• https://github.com/Ettercap/ettercap/pull/1330
• https://github.com/Ettercap/ettercap/security/advisories/GHSA-j37f-7jx3-rf8j
• https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-stack-buffer-overflow-via-wpa-ccmp-decryption

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