CVE-2026-125404
Ettercap through 0.8.4.1 Stack Buffer Overflow via WPA CCMP Decryption
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-191 |
| Vendor | ettercap |
| Product | ettercap |
| Published | Nov 9, 2026 |
Stay Ahead of the Next One
Get instant alerts for ettercap ettercap
Be the first to know when new high vulnerabilities affecting ettercap ettercap are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Ettercap / ettercap
0 ≤ 0.8.4.1
References
github.com: https://github.com/Ettercap/ettercap/security/advisories/GHSA-j37f-7jx3-rf8j github.com: https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98 github.com: https://github.com/Ettercap/ettercap/pull/1330 github.com: https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_encryption_ccmp.c#L190-L203 vulncheck.com: https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-stack-buffer-overflow-via-wpa-ccmp-decryption
Credits
Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar