Ettercap through 0.8.4.1 Out-of-Bounds Read via HTTP NTLM Authentication Parsing
- Exploited
- No known exploitation
- Fix
- Fix or patch referenced
- Who is exposed
- Not reported
Do first: Apply the patch listed under Evidence.
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 7/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure?/25Unknown. Advisories don't say whether default setups are affected
- Reach?/20Unknown. No tracked technology or package matched
- Severity7.2/10CVSS 7.2
- No patch0/5No signal
What would change the score
- Would score about 62 if added to CISA KEV
- Would score about 57 if CISA's SSVC rates exploitation active
- Would score about 29 if advisories confirm default setups are exposed
What to do
Apply the patch listed under Evidence.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- Ettercap ettercap
through 0.8.4.1
Evidence 5
- Advisory
- Patch
- Patch
- Repository
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-125405
Is CVE-2026-125405 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What does this mean?
When Ettercap parses an HTTP request carrying an NTLM Type 3 message in its Authorization or Proxy-Authorization header, it can read past the end of a buffer. The leaked memory may include other sessions' credentials, TLS material, and packet contents, and the process can crash.Source: vulncheck.com, github.com
Which versions are affected by CVE-2026-125405?
ettercap: through 0.8.4.1.Source: cve.now feed data
Am I affected, and how do I check?
Ettercap version 0.8.4.1 and earlier are listed as affected. To check, run ettercap with the version flag and compare the result to 0.8.4.1; the issue applies to HTTP traffic that Ettercap's HTTP dissector processes.Source: vulncheck.com, github.com
How do I fix CVE-2026-125405?
No fixed version is listed in the checked facts, so no upgrade target can be named from them. Check the Ettercap project for a release newer than 0.8.4.1 before deciding what to install.Source: vulncheck.com, github.com