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Vulnerability record

CVE-2026-125405

highCVSS 4.0 7.2EPSS 0.29%Published · Ettercap

The short answer

CVE-2026-125405 affects Ettercap ettercap and is rated high (CVSS 7.2). It is not in CISA's KEV catalog; EPSS puts the chance of exploitation in the next 30 days at 0.29%.

What it is

Ettercap through 0.8.4.1 contains an out-of-bounds read vulnerability in Parse_NTLM_Auth() in src/dissectors/ec_http.c due to unvalidated NTLM message offsets. Attackers can send a crafted HTTP Authorization header observed by Ettercap to read beyond the buffer, disclosing memory or crashing the process.

Weakness: CWE-125.

Severity

7.2 high

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploited (CISA KEV)

Not listed

CISA lists confirmed exploitation only

EPSS, next 30 days

0.29%

Higher than 22% of scored CVEs

How it can be exploited

Attack vector
Adjacent network
Attack complexity
Low
Attack requirements
None
Privileges required
None
User interaction
None
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Affected products

ettercap. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2026-125405 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog as of 2026-11-11. FIRST's EPSS estimates a 0.29% chance of exploitation in the next 30 days.

How do I fix CVE-2026-125405?

Follow the vendor advisory in the references below. NVD lists the affected versions under its configurations.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Received. The description is NVD's text, quoted as published.

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