AUGUST 4, 2026
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Case File

CVE-2021-27292

HIGH · CVSS 7.5 EPSS 3.37% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-03-17 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

GitHub PoC Links
gist.github.com ↗ github.com ↗ github.com ↗

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

CVE
CVE-2021-27292
Severity
HIGH
CVSS
7.5
EPSS
3.37%

Original NVD Description

ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will get stuck processing it for an extended period of time.