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CVE-2025-62168

10.0 · CRITICAL

Squid is a caching proxy for the Web.

Published Oct 17, 2025CWE-209EPSS 63.36%

Overview

CVE-2025-62168 is a critical-severity vulnerability. It was published on October 17, 2025 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off.

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

GitHubgithub.com/squid-cache/squid/commit/0951a0681011dfca3d78c84fd7f1e19c78a4443fGitHubgithub.com/squid-cache/squid/security/advisories/GHSA-c8cc-phh7-xmxrRefwww.openwall.com/lists/oss-security/2025/11/05/6

How CyberStrike helps

Frequently asked questions

What is CVE-2025-62168?

CVE-2025-62168 is a critical-severity vulnerability. It was published on October 17, 2025 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2025-62168?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-62168?

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-2025-62168?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-62168 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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