CVE-2024-0753

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.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.25%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Firefox

Affected: Mozilla Firefox ESR

Affected: Mozilla Thunderbird

References

Link	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1870262	release notes issue tracking
https://www.mozilla.org/security/advisories/mfsa2024-01/	release notes vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-02/	release notes vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-04/	release notes vendor advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00015.html	third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2024/01/msg00022.html	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2024-0753?: CVE-2024-0753 has been scored as a medium severity vulnerability.
How to fix CVE-2024-0753?: To fix CVE-2024-0753, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-0753 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-0753 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-0753?: CVE-2024-0753 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.

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