CVE-2022-2509

Name: CVE-2022-2509
Creator: NVD / NIST
Published: 2022-08-01T14:15:09.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.48%

Last modified Jun 17, 2026

CVE-2022-2509 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.

Description

A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.48%

70.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Gnutls	< 3.7.7
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Fedoraproject	Fedora	35
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://access.redhat.com/security/cve/CVE-2022-2509Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00002.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FL27JS3VM74YEQU7PGB62USO3KSBYZX/
https://lists.gnupg.org/pipermail/gnutls-help/2022-July/004746.htmlMailing List, Release Notes, Vendor Advisory
https://www.debian.org/security/2022/dsa-5203Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-2509Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00002.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FL27JS3VM74YEQU7PGB62USO3KSBYZX/
https://lists.gnupg.org/pipermail/gnutls-help/2022-July/004746.htmlMailing List, Release Notes, Vendor Advisory
https://www.debian.org/security/2022/dsa-5203Third Party Advisory

Timeline

Published: Aug 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-2509?

A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.

How severe is CVE-2022-2509?

CVE-2022-2509 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.

How do I fix CVE-2022-2509?

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-2022-2509?

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

Scan your code now

Source: NVD / NIST