CVE-2025-0240

Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

Published: Jan 7, 2025
Updated: May 4, 2025
CVE: CVE-2025-0240
Exploit:

No technical information available.

No CWE or OWASP classifications available.

Affected Software
References

Software	From	Fixed in
mozilla / firefox	-	134.0
mozilla / firefox	-	128.6.0
mozilla / thunderbird	-	128.6.0
mozilla / thunderbird	129.0	134.0

https://bugzilla.mozilla.org/show_bug.cgi?id=1929623
https://www.mozilla.org/security/advisories/mfsa2025-01/
https://www.mozilla.org/security/advisories/mfsa2025-02/
https://www.mozilla.org/security/advisories/mfsa2025-04/
https://www.mozilla.org/security/advisories/mfsa2025-05/

Vulnerability Database

CVE-2025-0240

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