CVE-2024-0753

MEDIUM

Published Jan 23, 2024 Modified Jun 7, 2025

Description

In specific HSTS configurations an attacker could have bypassed HSTS on a subdomain. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

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CVSS v3.1 Score

6.5

MEDIUM

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

Affected Products

Vendor	Product	Versions
mozilla	firefox	< 122.0
mozilla	firefox_esr	< 115.7
mozilla	thunderbird	< 115.7
debian	debian_linux	All

References

Advisories & Patches

https://www.mozilla.org/security/advisories/mfsa2024-01/ https://www.mozilla.org/security/advisories/mfsa2024-02/ https://www.mozilla.org/security/advisories/mfsa2024-04/ https://www.mozilla.org/security/advisories/mfsa2024-01/ https://www.mozilla.org/security/advisories/mfsa2024-02/ https://www.mozilla.org/security/advisories/mfsa2024-04/

Other References

https://bugzilla.mozilla.org/show_bug.cgi?id=1870262 https://lists.debian.org/debian-lts-announce/2024/01/msg00015.html https://lists.debian.org/debian-lts-announce/2024/01/msg00022.html https://bugzilla.mozilla.org/show_bug.cgi?id=1870262 https://lists.debian.org/debian-lts-announce/2024/01/msg00015.html https://lists.debian.org/debian-lts-announce/2024/01/msg00022.html https://www.youtube.com/watch?v=JjMb7Z8ak2k

Frequently Asked Questions

What is CVE-2024-0753? +

In specific HSTS configurations an attacker could have bypassed HSTS on a subdomain. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-0753? +

CVE-2024-0753 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-0753? +

CVE-2024-0753 affects products from debian, mozilla, specifically: debian_linux, firefox, firefox_esr, thunderbird. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-0753? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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Quick Facts

CVSS Score: 6.5
Severity: MEDIUM
Published: Jan 23, 2024

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