Home/CVE/Mercurial before 1.6.4 fails to verify the Common Name field of SSL certificates which allows remote attackers who acqui
CVE

CVE-2010-4237

Mercurial before 1.6.4 fails to verify the Common Name field of SSL certificates which allows remote attackers who acqui

Mercurial before 1.6.4 fails to verify the Common Name field of SSL certificates which allows remote attackers who acquire a certificate signed by a Certificate Authority to perform a man-in-the-middle attack.

MEDIUM · CVSS 5.9 EPSS 0.00307
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
▤

Affected Products & Versions

1
mercurial< 1.6.4
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI mercurial MODERATE fixed in 1.6.4
▣

Scoring & Timeline

5.9
MEDIUM · CVSS v3.1 · security@ubuntu.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Oct 2019 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598841Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4237Issue TrackingThird Party Advisory
https://bz.mercurial-scm.org/show_bug.cgi?id=2407Vendor Advisory
https://security-tracker.debian.org/tracker/CVE-2010-4237Third Party Advisory
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