VulnerabilityModified
CVE-2023-25739
Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in <code>ScriptLoadContext</code>.
HIGH 8.8EPSS 0.68%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in <code>ScriptLoadContext</code>. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.68% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811939Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811939Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811939Issue Tracking, Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.