CVE-2025-32989

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2025-07-10. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.3Exploit: NoneExposed: 0

A fix is available — apply it.

A heap-buffer-overread vulnerability was found in GnuTLS in how it handles the Certificate Transparency (CT) Signed Certificate Timestamp (SCT) extension during X.509 certificate parsing. This flaw allows a malicious user to create a certificate containing a malformed SCT extension (OID 1.3.6.1.4.1.11129.2.4.2) that contains sensitive data. This issue leads to the exposure of confidential information when GnuTLS verifies certificates from certain websites when the certificate (SCT) is not checked correctly.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
64.2%
KEV
Not listed

Published

July 10, 2025

Last Modified

July 14, 2026

Advisory Details (10)

Auto-updated Jun 25, 2026
Patch available. Sources: redhat.
redhat Patch Available

2359621 – (CVE-2025-32989) CVE-2025-32989 gnutls: Vulnerability in GnuTLS SCT extension parsing

Affected: Red Hat Enterprise Linux 10

https://bugzilla.redhat.com/show_bug.cgi?id=2359621
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2025-32989
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:7477
redhat Patch Available
https://access.redhat.com/errata/RHSA-2025:22529
redhat Patch Available
https://access.redhat.com/errata/RHSA-2025:19088
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2025:17361
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2025:17348
redhat Patch Available
https://access.redhat.com/errata/RHSA-2025:17181
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:16116
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2025:16115

Vendor Advisories for CVE-2025-32989(6)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibgnutls30t64 (3.8.9-2ubuntu3.1) @ plucky2026-05-21ubuntu
redhatgnutls-main-3.8.12-1.1.hum12026-04-10redhat
redhatrhceph/rhceph-7-rhel9:72025-12-01redhat
redhatdiscovery/discovery-ui-rhel9:2.3.0-17605543842025-10-23redhat
redhatgnutls-0:3.7.6-21.el9_2.42025-10-06redhat
redhatgnutls-0:3.8.3-4.el9_4.42025-10-06redhat
redhatinsights-proxy/insights-proxy-container-rhel9:1.5.7-17593319892025-10-01redhat
redhatgnutls-0:3.8.9-9.el10_0.142025-09-17redhat
redhatgnutls-0:3.8.3-6.el9_6.22025-09-17redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 123 total refreshes for this CVE.

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Frequently asked(5)

What is CVE-2025-32989?
CVE-2025-32989 is a medium vulnerability published on July 10, 2025. A heap-buffer-overread vulnerability was found in GnuTLS in how it handles the Certificate Transparency (CT) Signed Certificate Timestamp (SCT) extension during X.509 certificate parsing. This flaw allows a malicious user to create a certificate containing a malformed SCT extension (OID…
When was CVE-2025-32989 disclosed?
CVE-2025-32989 was first published in the National Vulnerability Database on July 10, 2025, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-32989 actively exploited?
CVE-2025-32989 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-32989?
CVE-2025-32989 has a CVSS v4.0 base score of 5.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2025-32989?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-32989, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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