Adobe Patches Actively Exploited Acrobat Reader Flaw CVE-2026-34621
ID: 6bde0ed2-7c30-5f07-bf4f-811860cb9955
STIX ID: report--6bde0ed2-7c30-5f07-bf4f-811860cb9955
Feed Name: The Cyber Express
Threat Score
Adobe released emergency updates under APSB26-43 to fix CVE-2026-34621, a prototype-pollution vulnerability in Acrobat and Reader (Windows and macOS) rated CVSS 8.6 that can enable arbitrary code execution; Adobe confirmed active exploitation in the wild and urges immediate patching to fixed versions (Acrobat/Reader DC 26.001.21411; Acrobat 2024 24.001.30362 for Windows, 24.001.30360 for macOS).
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