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CVE-2026-125403 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_sslwrap.c#L1294-L1322	[email protected]
https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98	[email protected]
https://github.com/Ettercap/ettercap/pull/1330	[email protected]
https://github.com/Ettercap/ettercap/security/advisories/GHSA-hq2w-pg4m-6w63	[email protected]
https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-out-of-bounds-read-via-sslw-remove-sts	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 10, 2026	CVE Modified	CISA-ADP
Nov 10, 2026	New CVE Received	[email protected]