VDB
CVE-2026-6749
CVE-2026-6749
PUBLISHED
CVSS 8.699999809265137 HIGH
Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.
EPSS 0.05% · 17.2th percentile
Risk Scores
CVSS 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.05%
17.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | 140.10, 150 |
| Mozilla | Firefox | 140.10, 150, 115.35 |
Timeline
- Apr 21, 2026 CVE Published
- Apr 22, 2026 EPSS Score
- Apr 22, 2026 Security Advisory
- Apr 27, 2026 Distribution Patch
- Apr 27, 2026 Security Advisory
- Apr 27, 2026 Distribution Patch
- Apr 27, 2026 Security Advisory
- Apr 27, 2026 Distribution Patch
- Apr 27, 2026 Security Advisory
- Apr 28, 2026 Distribution Patch
- Apr 28, 2026 Distribution Patch
- Apr 30, 2026 Distribution Patch
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2022610 url
- https://www.mozilla.org/security/advisories/mfsa2026-30/ url
- https://www.mozilla.org/security/advisories/mfsa2026-31/ url
- https://www.mozilla.org/security/advisories/mfsa2026-32/ url
- https://www.mozilla.org/security/advisories/mfsa2026-33/ url
- https://www.mozilla.org/security/advisories/mfsa2026-34/ url
- https://nvd.nist.gov/vuln/detail/CVE-2026-6749 advisory
- https://www.mozilla.org/security/advisories/mfsa2026-30 url
- https://www.mozilla.org/security/advisories/mfsa2026-31 url
- https://www.mozilla.org/security/advisories/mfsa2026-32 url