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CVE-2026-66798

4.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 4

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-28 21:17
  2. StatusPublished → AnalyzedNVD modified 2026-10-28 21:17
  3. CVSS4.3 (v3.1, CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C) → 4.3 (v3.1, CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)NVD modified 2026-10-28 21:17
  4. First seenCVSS 4.3 · microsoftNVD modified 2026-10-21 20:54

Affected (CPE criteria) 1

  • cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

References 1