THREAT OPS › Threat News › [NVD] CVE-2026-0881 (CRITICAL 10.0) — Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
[NVD] CVE-2026-0881 (CRITICAL 10.0) — Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
CVE-2026-0881 CVSS: 10.0 CRITICAL Published: 2026-01-13T14:16:38.657
Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
Indicators of compromise
- CVE-2026-0881cve
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-0881