CVE-2025-32989
5.3 · MEDIUMA 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.
Overview
CVE-2025-32989 is a medium-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
References
How CyberStrike helps
Reason, not just scan
It reasons through your app's logic the way a human pentester would, so it finds flaws signature scanners miss.
Learn moreVerified findings
Every finding is proven exploitable before you see it, which cuts the false positives that bury real risk.
Learn moreAI-driven DAST and SAST
Probe running apps and read source from one engine, so issues are caught before and after they ship.
Learn moreOpen source
Read exactly how it tests and what it reports. CyberStrike is open source and in early access.
View the repo
Frequently asked questions
What is CVE-2025-32989?
CVE-2025-32989 is a medium-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2025-32989?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-32989?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-32989?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-32989 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
Related MEDIUM CVEs from 2025
View all- 6.9CVE-2025-27370
OpenID Connect Core through 1.0 errata set 2 allows audience injection in certain situations. When t
View details - 6.9CVE-2025-27371
In certain IETF OAuth 2.0-related specifications, when the JSON Web Token Profile for OAuth 2.0 Clie
View details - 6.9CVE-2024-12136
Missing Critical Step in Authentication vulnerability in Elfatek Elektronics ANKA JPD-00028 allows A
View details - 6.9CVE-2024-7035
In version v0.3.8 of open-webui/open-webui, sensitive actions such as deleting and resetting are per
View details - 6.9CVE-2025-30168
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.
View details - 6.9CVE-2025-29988
Dell Client Platform BIOS contains a Stack-based Buffer Overflow Vulnerability. A high privileged at
View details - 6.9CVE-2025-43013
In JetBrains Toolbox App before 2.6 unencrypted credential transmission during SSH authentication wa
View details - 6.9CVE-2025-22244
VMware NSX contains a stored Cross-Site Scripting (XSS) vulnerability in the gateway firewall due to
View details - 6.9CVE-2025-53167
Authentication vulnerability in the distributed collaboration framework module Impact: Successful ex
View details - 6.9CVE-2025-42992
SAPCAR allows an attacker logged in with high privileges to create a malicious SAR archive in SAPCAR
View details - 6.9CVE-2025-43001
SAPCAR allows an attacker logged in with high privileges to override the permissions of the current
View details - 6.9CVE-2025-53621
DSpace open source software is a repository application which provides durable access to digital res
View details