CVE-2010-4237

Name: CVE-2010-4237
Creator: NVD / NIST
Published: 2019-10-29T19:15:12.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.81%

Last modified Jun 16, 2026

CVE-2010-4237 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.81%

52.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Mercurial	Mercurial	< 1.6.4

References

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598841Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4237Issue Tracking, Third Party Advisory
https://bz.mercurial-scm.org/show_bug.cgi?id=2407Vendor Advisory
https://security-tracker.debian.org/tracker/CVE-2010-4237Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598841Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4237Issue Tracking, Third Party Advisory
https://bz.mercurial-scm.org/show_bug.cgi?id=2407Vendor Advisory
https://security-tracker.debian.org/tracker/CVE-2010-4237Third Party Advisory

Timeline

Published: Oct 29, 2019
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2010-4237?

How severe is CVE-2010-4237?

CVE-2010-4237 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2010-4237?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2010-4237?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST