6.8mediumMedium
CVE-2026-74984
Mozilla Firefox
Race condition in the JavaScript Engine 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, exploitation depends on conditions outside the attacker's control.
- To exploit it, no account is needed.
- Beyond that, someone has to be persuaded to take an action first.
Scoring
- CVSS
- 6.8 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N- Weakness
- CWE-362
- 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.