VDB
DEBIAN-CVE-2026-6749
DEBIAN-CVE-2026-6749
PUBLISHED
CVSS 7.5 HIGH
Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | thunderbird | 128.12.0, 1:115.3.1-1~deb12u1, 1:115.4.1-1~deb10u1 |
| Debian:14 | firefox-esr | 140.9.1, 140.9.1, 140.9.1 |
| Debian:12 | firefox-esr | 115.13.0, 115.13.0, 115.13.0 |
| Debian:13 | firefox-esr | 140.5.0, 140.6.0, 140.6.0 |
| Debian:12 | thunderbird | 115.9.0-1, 1:102.11.0-1, 1:102.12.0-1~deb10u1 |
| Debian:11 | firefox-esr | 128.3.1, 91.2.0esr-1, 91.3.0esr-1 |
| Debian:13 | thunderbird | 140.9.1, 140.9.1, 140.9.1 |
| Debian:14 | thunderbird | 1:128.14.0esr-1, 140.9.1, 1:128.13.0esr-1 |
Exploit Intelligence
- mfsa2026-30.yml (github-poc)
- mfsa2026-34.yml (github-poc)
- 2026-04-29_417_firefox-esr.yaml (github-poc)
- 2026.xml (github-poc)
- blog-045.ts (github-poc)
Timeline
- Apr 21, 2026 CVE Published
- Apr 28, 2026 CVE Updated