Firefox Type Confusion Vulnerability Could Lead to Code Execution
CVE-2024-7520

8.8HIGH

Key Information:

Vendor

Mozilla
Status
Firefox
Firefox Esr
Thunderbird
Vendor
CVE Published:
6 August 2024

What is CVE-2024-7520?

A type confusion vulnerability present in WebAssembly used by Mozilla products could be exploited to allow an attacker to execute arbitrary code. This vulnerability affects various versions of Firefox, specifically those earlier than version 129, and also impacts the Extended Support Release (ESR) version below 128.1. Additionally, Thunderbird users with versions prior to 128.1 are at risk. Attackers may utilize this flaw to manipulate memory and potentially gain control over affected systems, highlighting the necessity for timely updates and security patches.

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Affected Version(s)

Firefox < 129

Firefox ESR < 128.1

Thunderbird < 128.1

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1903041
https://www.mozilla.org/security/advisories/mfsa2024-33/
https://www.mozilla.org/security/advisories/mfsa2024-35/

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nan Wang
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