VULNERABILITY INTELLIGENCE

CVE-2021-21796

CVSS score7.8 HIGH
EPSS probability15.78%
CISA KEVNot currently listed
Published2021-10-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

An exploitable use-after-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause an object containing the path to a document to be destroyed and then later reused, resulting in a use-after-free vulnerability, which can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-416
  • nvd@nist.gov: CWE-416

Primary references