7.5highHigh
CVE-2026-74982
Mozilla Firefox
Denial-of-service in the Widget component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness
- CWE-400
- Assigned by
- security@mozilla.org
Dates
- Published
- 2026-08-18
- Last modified
- 2026-08-25
- Sources
- NVD
Affected products
- Mozilla Firefox- 153.1.0
- Mozilla Thunderbird- 153.1.0
As listed in the NVD configuration data. Not a statement about your estate.