CVE-2023-49564

Unauthenticated API access via crafted HTTP header

Published Sep 18, 2025 · Updated Sep 18, 2025

Authentication bypass in Nokia CBIS 22 and NCS 22.12 allows remote attackers to access restricted Manager API functions. The Nginx Podman container's authentication implementation weakly verifies a specially crafted HTTP header and accepts the request without valid credentials. Access to the management network is required, after which restricted or sensitive API endpoints become reachable.

CVSS severity9.6
Critical
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Nokia CBIS 22 and NCS 22.12 allows remote attackers to access restricted Manager API functions. The Nginx Podman container's authentication implementation weakly verifies a specially crafted HTTP header and accepts the request without valid credentials. Access to the management network is required, after which restricted or sensitive API endpoints become reachable.

The record

CVE
CVE-2023-49564
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-288, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.6NokiaCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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