About Remote Code Execution - Adobe Reader (CVE-2026-34621) vulnerability

About Remote Code Execution - Adobe Reader CVE-2026-34621 vulnerability. Adobe Acrobat Reader from 2003 to 2015, "Adobe Reader" is a free PDF viewer developed by Adobe. Versions are available for Windows, macOS, Android, and iOS. The remote code execution vulnerability in Adobe Acrobat for Window...

Simply opening a PDF could trigger this Adobe Reader zero-day

Opening the wrong PDF in Adobe Reader was enough to let criminals quietly spy on your computer and unleash more attacks, even though everything looked normal. A researcher analyzed a malicious PDF and found that it abused a previously unknown flaw a “zero‑day” in Adobe Acrobat Reader. When a vict...

Adobe Patches Actively Exploited Acrobat Reader Flaw CVE-2026-34621

Adobe has released emergency updates to fix a critical security flaw in Acrobat Reader that has come under active exploitation in the wild. The vulnerability, assigned the CVE identifier CVE-2026-34621 , carries a CVSS score of 8.6 out of 10.0. Successful exploitation of the flaw could allow an...

CVE-2026-34621 Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)

Acrobat Reader versions 24.001.30356, 26.001.21367 and earlier are affected by an Improperly Controlled Modification of Object Prototype Attributes 'Prototype Pollution' vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue...

CVE-2026-34621

creationtimestamp| type| source ---|---|--- 2026-04-07 04:00:00+00:00| published-proof-of-concept| https://justhaifei1.blogspot.com/2026/04/expmon-detected-sophisticated-zero-day-adobe-reader.html 2026-04-11 04:00:00+00:00| exploited| https://helpx.adobe.com/security/products/acrobat/apsb26-43.ht...