CVE-2020-36425

Public Exploit

Description

An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Third-Party Advisory gentoo.org Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 third party advisory release notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 third party advisory release notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 third party advisory release notes
https://bugs.gentoo.org/740108 issue tracking third party advisory patch
https://github.com/ARMmbed/mbedtls/pull/3433 third party advisory
https://github.com/ARMmbed/mbedtls/issues/3340 issue tracking exploit third party advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-36425?
CVE-2020-36425 has been scored as a medium severity vulnerability.
How to fix CVE-2020-36425?
To fix CVE-2020-36425, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-36425 being actively exploited in the wild?
It is possible that CVE-2020-36425 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.