CVE-2026-125404

Ettercap through 0.8.4.1 Stack Buffer Overflow via WPA CCMP Decryption

Published Nov 9, 2026 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ettercap
Ettercap ettercap
Vendors & Products Ettercap
Ettercap ettercap
Type Values Removed Values Added
Description 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.
Title Ettercap through 0.8.4.1 Stack Buffer Overflow via WPA CCMP Decryption
First Time appeared Ettercap-project
Ettercap-project ettercap
Weaknesses CWE-191
CPEs cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
Vendors & Products Ettercap-project
Ettercap-project ettercap
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 10, 2026, 4:35 PM
Reserved
Nov 9, 2026, 10:03 PM
Status
Awaiting Analysis
Published
Nov 10, 2026, 12:17 AM
Modified
Nov 12, 2026, 9:07 PM