November 14, 2026

CVE Watchtower

CVE-2026-125405Ettercap ettercap Out-of-bounds Read

NVD

Vulnerability Summary

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.
Severity Level
HIGH(7.2)
Published Date
Nov 9, 2026
Last Modified
Nov 9, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.29%Probability
Root Weakness (CWE)
CWE-125: Out-of-bounds Read ↗
The software reads data past the end, or before the beginning, of the intended buffer.
CVSS v4.0 Base Metrics — Score 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
Attack VectorAdjacent
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)None
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 8.1)
CVSS v3.1 Base Metrics — Score 8.1 (HIGH)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack VectorAdjacent
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Ettercap ettercap <= 0.8.4.1
Patched Versions
  • Ettercap ettercap 0.8.4.1

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is high.

  1. Check whether you run Ettercap ettercap and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Nov 9, 2026Published
  • Nov 9, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 01:09 UTC