CVE-2022-3515

Name: CVE-2022-3515
Creator: NVD / NIST
Published: 2023-01-12T15:15:10.187+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.64%

Last modified Jun 17, 2026

CVE-2022-3515 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.. EPSS estimates a 1.64% chance of exploitation in the next 30 days.

Description

A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.64%

73.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnupg	Libksba	< 1.6.3
Gpg4win	Gpg4win	>= 2.0.0, < 4.1.0
Gnupg	Vs-Desktop	>= 3.1.16, < 3.1.26
Gnupg	Gnupg	>= 2.1.0, < 2.2.41
Gnupg	Gnupg	>= 2.3.0, < 2.4.0

References

https://access.redhat.com/security/cve/CVE-2022-3515Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2135610Exploit, Issue Tracking, Third Party Advisory
https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582bExploit, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230706-0008/
https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.htmlThird Party Advisory
https://access.redhat.com/security/cve/CVE-2022-3515Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2135610Exploit, Issue Tracking, Third Party Advisory
https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582bExploit, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230706-0008/
https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.htmlThird Party Advisory

Timeline

Published: Jan 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-3515?

How severe is CVE-2022-3515?

CVE-2022-3515 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.64% probability of exploitation in the next 30 days.

How do I fix CVE-2022-3515?

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-2022-3515?

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

Scan your code now

Source: NVD / NIST