CVE-2022-3515

9.8 criticalEPSS 1.7%

Critical (9.8). EPSS 1.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWE: CWE-190
Published: 2023-01-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gnupg:gnupg
gnupg:libksba
gnupg:vs-desktop
gpg4win:gpg4win

References

https://access.redhat.com/security/cve/CVE-2022-3515
https://bugzilla.redhat.com/show_bug.cgi?id=2135610
https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582b
https://security.netapp.com/advisory/ntap-20230706-0008/
https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.html

Check your stack JSON