CVE-2026-74970

Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

CVSS v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

0.14% chance of exploitation in the next 30 days, 4th percentile

Published

2026-08-18

Proof-of-concept exploits (1)

• defineid/Trespasser0★ · 2026-08-25

References

• CVE Record
• NVD entry

Related

• CVE-2026-6765
• CVE-2026-74943
• CVE-2026-74945
• CVE-2026-74992
• CVE-2026-7501
• CVE-2026-74939