Recent Advisories

Severity ID Title Vendor Product Date Type
HIGH 7.5 CVE-2026-12312

Memory safety bug fixed in Thunderbird 152_CVE-2026-12312

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Mozilla Firefox 140.12 CVE
HIGH 7.5 CVE-2026-12310

Memory safety bug fixed in Thunderbird 152_CVE-2026-12310

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Mozilla Firefox 140.12 CVE
MEDIUM 6.5 CVE-2026-12309

Memory safety bug fixed in Thunderbird 152_CVE-2026-12309

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Mozilla Firefox 140.12 CVE
MEDIUM 5.3 CVE-2026-12308

Memory safety bug fixed in Thunderbird 152_CVE-2026-12308

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Mozilla Firefox 140.12 CVE
MEDIUM 5.3 CVE-2026-12307

Memory safety bug fixed in Thunderbird 152_CVE-2026-12307

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Mozilla Firefox 140.12 CVE
MEDIUM 5.3 CVE-2026-12306

Memory safety bug fixed in Thunderbird 152_CVE-2026-12306

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Mozilla Firefox 140.12 CVE
HIGH 7.5 CVE-2026-12305

Memory safety bug fixed in Thunderbird 152_CVE-2026-12305

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Mozilla Firefox 140.12 CVE
CRITICAL 9.1 CVE-2026-12304

Same-origin policy bypass in the Networking: Cookies component_CVE-2026-12304

Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, a...

Mozilla Firefox 140.12 CVE
MEDIUM 6.5 CVE-2026-12302

Mitigation bypass in the DOM: Security component_CVE-2026-12302

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird ...

Mozilla Firefox 115.37 CVE
MEDIUM 5.3 CVE-2026-12301

Memory safety bug fixed in Thunderbird 152_CVE-2026-12301

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

Mozilla Firefox 152 CVE