CVE-2023-49564

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2025-09-18. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
33.9%
KEV
Not listed

Published

September 18, 2025

Last Modified

April 15, 2026

References (1)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 117 total refreshes for this CVE.

  1. 2026-07-22 14:06 UTCEPSS rescore
  2. 2026-07-21 15:23 UTCEPSS rescore
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  1. 2026-07-05 02:29 UTCEPSS rescore
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  42. 2026-06-07 15:24 UTCEPSS rescore
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  44. 2026-06-06 13:46 UTCEPSS rescore
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  46. 2026-06-05 22:46 UTCEPSS rescore
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  48. 2026-06-05 06:09 UTCEPSS rescore
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  51. 2026-06-04 13:11 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2023-49564?
CVE-2023-49564 is a high vulnerability published on September 18, 2025. 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…
When was CVE-2023-49564 disclosed?
CVE-2023-49564 was first published in the National Vulnerability Database on September 18, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-49564 actively exploited?
CVE-2023-49564 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-49564?
CVE-2023-49564 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-49564?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-49564, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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