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CVE-2025-4727

3.7 · LOW

A vulnerability was found in Meteor up to 3.2.1 and classified as problematic.

Published May 15, 2025CWE-400EPSS 0.92%

Overview

CVE-2025-4727 is a low-severity vulnerability. It was published on May 15, 2025 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability was found in Meteor up to 3.2.1 and classified as problematic. This issue affects the function Object.assign of the file packages/ddp-server/livedata_server.js. The manipulation of the argument forwardedFor leads to inefficient regular expression complexity. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.2 is able to address this issue. The identifier of the patch is f7ea6817b90952baaea9baace2a3b4366fee6a63. It is recommended to upgrade the affected component.

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/meteor/meteor/commit/f7ea6817b90952baaea9baace2a3b4366fee6a63GitHubgithub.com/meteor/meteor/issues/13713GitHubgithub.com/meteor/meteor/pull/13721GitHubgithub.com/meteor/meteor/releases/tag/release/METEOR%403.2.2Refvuldb.com/?ctiid.309029Refvuldb.com/?id.309029Refvuldb.com/?submit.570441Refvuldb.com/?submit.570441

How CyberStrike helps

Frequently asked questions

What is CVE-2025-4727?

CVE-2025-4727 is a low-severity vulnerability. It was published on May 15, 2025 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2025-4727?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-4727?

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-2025-4727?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-4727 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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