High severity · published Jun 2, 2023
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>
8.8
CVSS
0.7%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 110.0 · source: NVD
FE
Firefox Esr · Mozilla
before 102.8 · source: NVD
TH
Thunderbird · Mozilla
before 102.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-25739
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-25739
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1811939
Vendor Advisory
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/
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