AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2023-35138

CRITICAL · CVSS 9.8 EPSS 40.00%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-11-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Its EPSS score suggests a 40.0% probability of exploitation in the next 30 days. Exploitation may require the attacker to be authenticated.

CVE
CVE-2023-35138
Severity
CRITICAL
CVSS
9.8
EPSS
40.00%

Original NVD Description

A command injection vulnerability in the “show_zysync_server_contents” function of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.

Related CVEs

Other vulnerabilities affecting the same vendor(s)