CVE-2024-7521

Description

Incomplete WebAssembly exception handing could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.35%
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 Firefox ESR
Affected: Mozilla Thunderbird
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1904644 issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2024-33/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-34/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-35/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-37/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-38/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2024-7521?
CVE-2024-7521 has been scored as a high severity vulnerability.
How to fix CVE-2024-7521?
To fix CVE-2024-7521, 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-2024-7521 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-7521 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-2024-7521?
CVE-2024-7521 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Firefox ESR, Mozilla Thunderbird, Mozilla Thunderbird.
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