CVE-2021-38510

Description

The executable file warning was not presented when downloading .inetloc files, which, due to a flaw in Mac OS, can run commands on a user's computer.*Note: This issue only affected Mac OS operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

8.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.46%

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

Affected: Mozilla Firefox

Affected: Mozilla Thunderbird

Affected: Mozilla Firefox ESR

References

Link	Tags
https://www.mozilla.org/security/advisories/mfsa2021-49/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2021-50/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2021-48/	vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1731779	vendor advisory issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2021-38510?: CVE-2021-38510 has been scored as a high severity vulnerability.
How to fix CVE-2021-38510?: To fix CVE-2021-38510, 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-2021-38510 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-38510 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-2021-38510?: CVE-2021-38510 affects Mozilla Firefox, Mozilla Thunderbird, Mozilla Firefox ESR.

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