CVE-2023-33010

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 6/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

Description

Zyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the ID processing function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device.

CISA Known Exploited Vulnerability

Vendor / Product Zyxel — Multiple Firewalls
Date Added 2023-06-05
Remediation Due 2023-06-26
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls; https://nvd.nist.gov/vuln/detail/CVE-2023-33010

Bug Bounty Relevance

6 / 100
✓ Known exploited (KEV)

CVSS Score

Unscored

EPSS — Exploitation Probability

29.02%
Raw Score 0.290240
Percentile 98.2%
Date 2026-10-28

Intelligence Sources

kev ref →