CVE-2025-60638Public exploitNetwork attack vector

NSSF crash via omitted expiry field

Published Nov 24, 2025 · Updated Nov 24, 2025

Denial of service in Free5GC 4.0.0 and 4.0.1 allows remote attackers to crash NSSF via a crafted NSSAIAvailability POST request. NssaiAvailabilitySubscriptionCreate calls Expiry.IsZero() without first checking whether the optional expiry pointer is nil, causing a nil-pointer panic when the field is omitted. The NSSF API must be reachable, and deployments with OAuth enabled require a valid token; the panic interrupts request handling with HTTP 500.

CVSS severity7.5
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Free5GC 4.0.0 and 4.0.1 allows remote attackers to crash NSSF via a crafted NSSAIAvailability POST request. NssaiAvailabilitySubscriptionCreate calls Expiry.IsZero() without first checking whether the optional expiry pointer is nil, causing a nil-pointer panic when the field is omitted. The NSSF API must be reachable, and deployments with OAuth enabled require a valid token; the panic interrupts request handling with HTTP 500.

The record

CVE
CVE-2025-60638
Published
Nov 24, 2025
Updated
Nov 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 24, 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
T1499Endpoint Denial of Service

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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