CVE-2026-2763
Description
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Risk Information
Base Score
9.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.061
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Multiple vulnerabilities are fixed in Mozilla Firefox (148.0) | Windows |
| Multiple vulnerabilities are fixed in Mozilla Firefox (x64) (148.0) | Windows |
| Multiple vulnerabilities are fixed in Mozilla Firefox (Microsoft Store) 140.8 | Windows |
| Multiple vulnerabilities are fixed in Mozilla Firefox (Microsoft Store) 115.33 | Windows |
| Multiple vulnerabilities are fixed in Mozilla Firefox (Microsoft Store) 148 | Windows |
| Multiple vulnerabilities are fixed in Mozilla Thunderbird ESR 140 (140.8.0) | Windows |
| Multiple vulnerabilities are fixed in Mozilla Thunderbird ESR 140 (x64) (140.8.0) | Windows |
| Multiple vulnerabilities are fixed in Mozilla Thunderbird (148.0) | Windows |
| Multiple vulnerabilities are fixed in Mozilla Thunderbird (x64) (148.0) | Windows |
| Multiple vulnerabilities are fixed in Mozilla Firefox For Mac (148.0) | Mac |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-356381 | Mozilla Firefox (148.0) |
| PATCH-356382 | Mozilla Firefox (x64) (148.0) |
| PATCH-356403 | Mozilla Thunderbird ESR 140 (140.8.0) |
| PATCH-356404 | Mozilla Thunderbird ESR 140 (x64) (140.8.0) |
| PATCH-356401 | Mozilla Thunderbird (148.0) |
| PATCH-356402 | Mozilla Thunderbird (x64) (148.0) |
| PATCH-613714 | Mozilla Firefox For Mac (148.0) |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234