Vulnerability · NVD
CVE-2026-12307
CVE-2026-12307, medium severity (CVSS 5.3): 2 tracked apps concerned, all fixed or indeterminable on their current version.
- Severity (CVSS)
- 5.3
- Exploitation
- 0.3 %
- Tracked apps
- 2
- Still exposed
- 0
NVD scale
EPSS, predicted over 30 days
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Attack vector : Network
No privileges required
No user interaction
Show raw CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
0.26%
exploit very unlikely
percentile 15.9%
Tracked apps referencing this CVE
For each app: the affected range, the fixing version, and where the tracked app stands today.
Vulnerable CPE configurations (4)
| Vendor | Product | Platform | Versions | CPE 2.3 URI |
|---|---|---|---|---|
| mozilla |
firefox All platforms (wildcard)
|
All platforms (wildcard) | <140.12.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* |
| mozilla |
firefox All platforms (wildcard)
|
All platforms (wildcard) | <152.0.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* |
| mozilla |
thunderbird All platforms (wildcard)
|
All platforms (wildcard) | <140.12.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* |
| mozilla |
thunderbird All platforms (wildcard)
|
All platforms (wildcard) | <152.0.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* |
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