CVE-2023-4054

Description

When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 102.14, Firefox ESR < 115.1, Thunderbird < 102.14, and Thunderbird < 115.1.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org 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=1840777	issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2023-29/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-30/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-31/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-32/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-33/	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-4054?: CVE-2023-4054 has been scored as a medium severity vulnerability.
How to fix CVE-2023-4054?: To fix CVE-2023-4054, 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-2023-4054 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-4054 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-2023-4054?: CVE-2023-4054 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Firefox ESR, Mozilla Thunderbird, Mozilla Thunderbird.

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