CVE-2026-34621

8.6 HIGH CISA KEV - Actively Exploited
Published: April 11, 2026 Modified: April 13, 2026
View on NVD

Description

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 requires user interaction in that a victim must open a malicious file.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34621
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.6 / 10.0
EPSS (Exploit Probability)
0.0%
11th percentile
Exploitation Status
Actively Exploited
Remediation due: 2026-04-27

Weaknesses (CWE)

Affected Vendors

microsoft adobe apple