AUGUST 4, 2026
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Case File

CVE-2023-49564

HIGH · CVSS 8.8 EPSS 0.41%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-09-18 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. It affects Nginx. Exploitation may require the attacker to be authenticated.

CVE
CVE-2023-49564
Severity
HIGH
CVSS
8.8
EPSS
0.41%
Nginx

Original NVD Description

The CBIS/NCS Manager API is vulnerable to an authentication bypass. By sending a specially crafted HTTP header, an unauthenticated user can gain unauthorized access to API functions. This flaw allows attackers to reach restricted or sensitive endpoints of the HTTP API without providing any valid credentials. The root cause of this vulnerability lies in a weak verification mechanism within the authentication implementation present in the Nginx Podman container on the CBIS/NCS Manager host machine. The risk can be partially mitigated by restricting access to the management network using external firewall.