Out-of-Bounds Read Vulnerability in Ettercap by CEC
CVE-2026-125405

7.2HIGH

Key Information:

Vendor

Ettercap

Status
Ettercap
Vendor
CVE Published:
9 November 2026

What is CVE-2026-125405?

Ettercap versions up to 0.8.4.1 are susceptible to an out-of-bounds read vulnerability within the Parse_NTLM_Auth() function located in src/dissectors/ec_http.c. This vulnerability arises from unvalidated NTLM message offsets, which can be exploited by attackers sending crafted HTTP Authorization headers. Successful exploitation may lead to unintended memory disclosures or can crash the Ettercap process entirely, posing significant security risks.

Affected Version(s)

ettercap 0 <= 0.8.4.1

References

https://github.com/Ettercap/ettercap/security/advisories/...
vendor-advisory
https://github.com/Ettercap/ettercap/commit/1d8badb713579...
patch
https://github.com/Ettercap/ettercap/pull/1330
issue-trackingpatch

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team)
Emilio Escobar
.