CVE-2026-8091
⛔ criticalSummary
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.
CVSS Score
9.8
Critical
EPSS Score
0.0
Exploit Probability
Published Date
2026-05-07
First Seen: 2026-05-10
📊 Relative Risk Intelligence
This CVE is Very High Risk - more severe than 90.4% of all 321,361 vulnerabilities in our database.
#30,761
Top 10% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: May 8, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Total
Complete system compromise possible
🏆 Discovered By
The Mozilla Fuzzing Team
SSVC data provided by
CISA
Last Modified
2026-05-11
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE IDs (Weakness Types)