ZDI-CAN-29434 HIGH 7.8 Upcoming Mar 26, 2026

Meta

Meta, the 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 vendor deadline of July 2026, giving Meta four months to develop and release a patch. Security teams should monitor for official Meta advisories and prioritize patching once available, particularly for systems where local user access is possible.

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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