VDB
CVE-2026-74984
CVE-2026-74984
PUBLISHED
CVSS 6.8 MEDIUM
Reported by mozilla · Published August 18, 2026
Race condition in the JavaScript Engine component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
Risk Scores
CVSS 3.1
6.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | 153.1, 154 |
| Mozilla | Thunderbird | 153.1, 154 |
| Mozilla | Thunderbird | 153.1, 154, 153.1 |
| Mozilla | Firefox | 153.1, 154, 153.1 |
Timeline
- Aug 18, 2026 Coalition ESS Score
- Aug 18, 2026 CVE Published
- Aug 20, 2026 CVE Updated
- Aug 24, 2026 EPSS Score
- Aug 26, 2026 EPSS Score
- Sep 5, 2026 Security Advisory
- Sep 9, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 24, 2026 EPSS Score
- Sep 26, 2026 EPSS Score
- Sep 30, 2026 EPSS Score
- Oct 3, 2026 EPSS Score