ZDI-CAN-29449 HIGH 7.8 Upcoming Mar 26, 2026

Meta

Meta, a major social media and technology company, has a high-severity local vulnerability (CVSS 7.8) that requires user interaction but no authentication to exploit, potentially allowing attackers with local access to compromise confidentiality, integrity, and availability of affected systems. The vulnerability was reported in March 2026 with a July 2026 patch deadline, giving the vendor approximately four months to develop and release a fix. Security teams should monitor Meta's advisory channels closely and prioritize patching once updates become available, particularly for systems where untrusted users have local access.

Advisory Details
Researcher Mat Powell of TrendAI Zero Day Initiative
Reported March 26, 2026
Deadline July 24, 2026 99d
CVSS Vector AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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