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MEDIUM

CVE-2025-32990

CVSS v3

6.5

MEDIUM

EPSS Score

0.9 %

exploit probability, as of 2026-10-15

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gnutlsAlmaLinux:10all versions · fixed in 3.8.9-9.el10_0.14and 5 other packages
  • gnutlsAlmaLinux:9all versions · fixed in 3.8.3-6.el9_6.2and 4 other packages
  • gnutlsAlmaLinux:8all versions · fixed in 3.6.16-8.el8_10.4and 4 other packages

Vendor advisories

  • CVE-2025-32990 Red Hat Product Security371 products fixed · 13 known affected

    gnutls: Vulnerability in GnuTLS certtool template parsing

    gnutls as a component of Red Hat Enterprise Linux 6 · gnutls-devel as a component of Red Hat Enterprise Linux 6 · gnutls-guile as a component of Red Hat Enterprise Linux 6

  • RHSA-2026:7477 Red Hat Product Security17 products fixed

    Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

  • RHSA-2025:22529 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat Ceph Storage

  • RHSA-2025:19088 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage

  • RHSA-2025:17415 Red Hat Product Security75 products fixed

    Red Hat Security Advisory: gnutls security, bug fix, and enhancement update

  • RHSA-2025:17361 Red Hat Product Security75 products fixed

    Red Hat Security Advisory: gnutls security, bug fix, and enhancement update

4 more advisories

Full record on NVD

Description

A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS software in the template parsing logic within the certtool utility. When it reads certain settings from a template file, it allows an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial-of-service (DoS) that could potentially crash the system.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Published
2025-07-10
Last Modified
2026-04-20

Frequently asked questions

What is CVE-2025-32990?

A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS software in the template parsing logic within the certtool utility. When it reads certain settings from a template file, it allows an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial-of-service (DoS) that could potentially crash the system.

Is CVE-2025-32990 actively exploited?

Active exploitation of CVE-2025-32990 has not been confirmed. Its EPSS score was 0.9% on 2026-10-15, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-32990?

CVE-2025-32990 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

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