CVE Tools
Sign in

CVE-2025-32989

Gnutls: vulnerability in gnutls sct extension parsing

Published: Jul 10, 2025Updated: Jun 30, 2026 Sources: CVE List NVD BDU csafCWE-295
5.3MEDIUM
NVD MITRE
EPSS Score
1.2%
Top 35.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-295

Affected Products

Red Hat Inc.
commercial·USaka redhat, Red Hat
openshift container platformOn-prem
Operating Systems / linux-distro
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
Red Hat OpenShift Container PlatformOn-prem
Operating Systems / linux-distro
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9.4 Extended Update SupportOn-premOS
Operating Systems / linux-distro
Red Hat Ceph Storage 7On-premDatabase
Databases / data-warehouse-analytics
Red Hat Discovery 2On-premWeb App
Enterprise Software / itsm-monitoring
Red Hat Hardened ImagesOn-premOS
Operating Systems / linux-distro
gnu
oss-project·USaka g. nu
gnutls
OSS Libraries
Free Software Foundation, Inc.
oss-project·USaka fsf, free software foundation
GnuTLS
OSS Libraries
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
Canonical Ltd.
commercial·GBaka canonical
UbuntuOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
and 11 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
Is your org exposed to CVE-2025-32989?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2025:16115
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:16116
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:17181
access.redhat.com
and 262 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-32989 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows