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CVE-2025-5025

4.8 · MEDIUM

libcurl supports *pinning* of the server certificate public key for HTTPS transfers.

Published May 28, 2025CWE-295EPSS 0.29%

Overview

CVE-2025-5025 is a medium-severity vulnerability. It was published on May 28, 2025 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing.

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

Refcurl.se/docs/CVE-2025-5025.htmlRefcurl.se/docs/CVE-2025-5025.jsonRefhackerone.com/reports/3153497Refwww.openwall.com/lists/oss-security/2025/05/28/5

How CyberStrike helps

Frequently asked questions

What is CVE-2025-5025?

CVE-2025-5025 is a medium-severity vulnerability. It was published on May 28, 2025 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2025-5025?

This vulnerability has a CVSS 3.1 base score of 4.8, 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-2025-5025?

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-2025-5025?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-5025 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.

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