CVE-2026-125403
Ettercap through 0.8.4.1 Out-of-Bounds Read via sslw_remove_sts
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
Ettercap through 0.8.4.1 contains an out-of-bounds read and size_t underflow vulnerability in sslw_remove_sts() in src/ec_sslwrap.c, caused by a stale length and an unchecked memmem() result when stripping Strict-Transport-Security headers. A malicious HTTPS server whose response passes through Ettercap's SSL interception can trigger out-of-bounds reads and memory corruption in the Ettercap process, which normally runs as root.
| CWE | CWE-125 |
| Vendor | ettercap |
| Product | ettercap |
| Published | Nov 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
Ettercap / ettercap
0 ≤ 0.8.4.1
References
github.com: https://github.com/Ettercap/ettercap/security/advisories/GHSA-hq2w-pg4m-6w63 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_sslwrap.c#L1294-L1322 vulncheck.com: https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-out-of-bounds-read-via-sslw-remove-sts
Credits
Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar