Paper/Archive/CVE-2024-7521

CVE-2024-7521

Mozilla Firefox — Incomplete WebAssembly exception handing could have led to a use-after-free.

CVSS 9.8 (ADP)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 49.5.495 × 209.9 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Firefoxunspecified – < 129129CNA

Firefox ESRunspecified – < 115.14115.14CNA

Firefox ESRunspecified – < 128.1128.1CNA

Thunderbirdunspecified – < 128.1128.1CNA

Thunderbirdunspecified – < 115.14115.14CNA

firefox< 129129CISA-ADP

firefox_esr< 115.14115.14CISA-ADP

firefox_esr< 128.1128.1CISA-ADP

thunderbird< 128.1128.1CISA-ADP

thunderbird< 115.14115.14CISA-ADP

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refbugzilla.mozilla.org/show_bug.cgi?id=1904644 refmozilla.org/security/advisories/mfsa2024-33 refmozilla.org/security/advisories/mfsa2024-34 refmozilla.org/security/advisories/mfsa2024-35 refmozilla.org/security/advisories/mfsa2024-37 refmozilla.org/security/advisories/mfsa2024-38