CVE-2025-32989: Gnutls: vulnerability in gnutls sct extension parsing

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• gnu gnutlsall versions
• redhat enterprise linux10.0
• redhat enterprise linux6.0
• redhat enterprise linux7.0
• redhat enterprise linux8.0
• redhat enterprise linux9.0
• redhat openshift container platform4.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• Red Hat Red Hat Ceph Storage 7

  • 7 and laternot affected · rpm

• Red Hat Red Hat Discovery 2

  • 2.3.0-1760554384 and laternot affected · rpm

• Red Hat Red Hat Enterprise Linux 10

  • 0:3.8.9-9.el10_0.14 and laternot affected · rpm

• Red Hat Red Hat Enterprise Linux 6

  • all versionsunknown

• Red Hat Red Hat Enterprise Linux 7

  • all versionsunknown

• Red Hat Red Hat Enterprise Linux 8

  • all versionsunknown

• Red Hat Red Hat Enterprise Linux 9

  • 0:3.8.3-6.el9_6.2 and laternot affected · rpm
  • 0:3.8.3-6.el9_6.2 and laternot affected · rpm

• Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

  • 0:3.7.6-21.el9_2.4 and laternot affected · rpm

• Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support

  • 0:3.8.3-4.el9_4.4 and laternot affected · rpm

• Red Hat Red Hat Hardened Images

  • 3.8.12-1.1.hum1 and laternot affected · rpm

• Red Hat Red Hat Insights proxy 1.5

  • 1.5.7-1759331989 and laternot affected · rpm

• Red Hat Red Hat OpenShift Container Platform 4

  • all versionsaffected
  • all versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2017-5334Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attacker
  49Plan
• CVE-2019-3829A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7.
  48Plan
• CVE-2008-1948The _gnutls_server_name_recv_params function in lib/ext_server_name.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 does not properly c
  44Plan

Published before and after this one in the same product

• ← EarlierCVE-2024-0567Jan 16, 2024 · Gnutls: rejects certificate chain with distributed trust
  30Monitor
• ← EarlierCVE-2025-32988Jul 10, 2025 · Gnutls: vulnerability in gnutls othername san export
  32Monitor
• Later →CVE-2025-32990Jul 10, 2025 · Gnutls: vulnerability in gnutls certtool template parsing
  32Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

A certificate validation error is silently swallowed instead of terminating the connection. Often, code added for a test environment makes its way into production.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1override fun checkServerTrusted(chain: Array<X509Certificate>, type: String) {2  // Left empty for the test environment3}

1val client = OkHttpClient.Builder()2  .certificatePinner(3    CertificatePinner.Builder()4      .add("api.sirius.example", "sha256/…")5      .build()6  ).build()

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.