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CVE-2021-29948

2.5 · LOW

Signatures are written to disk before and read during verification, which might be subject to a race condition when a malicious local process or user is replacing the file.

Published Jun 24, 2021CWE-362EPSS 0.29%

Overview

CVE-2021-29948 is a low-severity vulnerability. It was published on June 24, 2021 and has a CVSS 3.1 base score of 2.5 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.5, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Signatures are written to disk before and read during verification, which might be subject to a race condition when a malicious local process or user is replacing the file. This vulnerability affects Thunderbird < 78.10.

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

Refbugzilla.mozilla.org/show_bug.cgi?id=1692899Refwww.mozilla.org/security/advisories/mfsa2021-14/Refbugzilla.mozilla.org/show_bug.cgi?id=1692899Refwww.mozilla.org/security/advisories/mfsa2021-14/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-29948?

CVE-2021-29948 is a low-severity vulnerability. It was published on June 24, 2021 and has a CVSS 3.1 base score of 2.5 (LOW).

How severe is CVE-2021-29948?

This vulnerability has a CVSS 3.1 base score of 2.5, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-29948?

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-2021-29948?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-29948 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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