Vulnerability · NVD
CVE-2026-84137
CVE-2026-84137, medium severity (CVSS 4.3): 2 tracked apps concerned, all fixed or indeterminable on their current version.
- Severity (CVSS)
- 4.3
- Exploitation
- 0.1 %
- Tracked apps
- 2
- Still exposed
- 0
NVD scale
EPSS, predicted over 30 days
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
Attack vector : Network
No privileges required
Show raw CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
0.14%
exploit very unlikely
percentile 4.0%
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) | <153.2.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla |
firefox All platforms (wildcard)
|
All platforms (wildcard) | ≥154.0.0 <155.0.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla |
thunderbird All platforms (wildcard)
|
All platforms (wildcard) | <153.2.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| mozilla |
thunderbird All platforms (wildcard)
|
All platforms (wildcard) | ≥154.0 <155.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |