CVE-2025-63288Public exploitNetwork attack vector

AMF crash via unchecked NGAP choice

Published Nov 10, 2025 · Updated Nov 10, 2025

Improper input validation in Open5GS AMF 2.7.6 allows remote attackers to crash the service with a malformed NGSetupRequest message. The NGSetupRequest handler accepts an altered GlobalRANNodeID choice byte, obtains an invalid pLMNIdentity buffer pointer, and passes it to memcpy. Access to the AMF N2 interface is sufficient, and the resulting invalid memory access terminates the AMF process.

CVSS severity7.5
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Open5GS AMF 2.7.6 allows remote attackers to crash the service with a malformed NGSetupRequest message. The NGSetupRequest handler accepts an altered GlobalRANNodeID choice byte, obtains an invalid pLMNIdentity buffer pointer, and passes it to memcpy. Access to the AMF N2 interface is sufficient, and the resulting invalid memory access terminates the AMF process.

The record

CVE
CVE-2025-63288
Published
Nov 10, 2025
Updated
Nov 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 10, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

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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