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Case File

CVE-2021-21798

HIGH · CVSS 7.8 EPSS 16.10% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-15 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It affects Java. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 16.1% probability of exploitation in the next 30 days.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-21798
Severity
HIGH
CVSS
7.8
EPSS
16.10%
Java

Original NVD Description

An exploitable return of stack variable address vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a stack variable to go out of scope, resulting in the application dereferencing a stale pointer. This can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger the vulnerability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)