🛡️ CVE-2024-6612 — firefox

🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-200 NVD

5.3

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

CSP violations generated links in the console tab of the developer tools, pointing to the violating resource. This caused a DNS prefetch which leaked that a CSP violation happened. This vulnerability affects Firefox < 128 and Thunderbird < 128.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Weakness class

CVE-2024-6612 is classified as CWE-200: Exposure of Sensitive Information. Information that should stay internal is disclosed to someone who is not authorised to see it.

Affected software

CVE-2024-6612 is recorded against 2 packages.

firefox (fixed in 128.0)
thunderbird (fixed in 128.0)

Timeline and source

Published on 9 July 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

bugzilla.mozilla.org
www.mozilla.org
www.mozilla.org
bugzilla.mozilla.org
www.mozilla.org
www.mozilla.org

CVE-2024-6612 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Ubuntu

Details

Severity MEDIUM

CVSS Score 5.3

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE CWE-200

Public Exploit ✅ No

Source NVD

Published 2024-07-09

Updated 2026-08-11

Modified 2026-06-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
firefox	—	128.0
thunderbird	—	128.0

References

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1880374

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-29/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-32/

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1880374

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-29/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-32/

🔗 NVD 🔗 Mitre

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