CVE-2025-41068Public exploitNetwork attack vector

NRF crash via invalid NF type assertion

Published Oct 27, 2025 · Updated Oct 27, 2025

Reachable assertion in Open5GS 2.7.5 and earlier allows remote attackers with NRF connectivity to crash the discovery service via SBI. The NRF accepts an NF registration containing an invalid nfType, then reaches an assertion while processing that entry during a subsequent NF-instance listing. Access to the NRF HTTP/2 interface is required, and exploitation aborts open5gs-nrfd and leaves network-function discovery unresponsive.

CVSS severity8.7
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in Open5GS 2.7.5 and earlier allows remote attackers with NRF connectivity to crash the discovery service via SBI. The NRF accepts an NF registration containing an invalid nfType, then reaches an assertion while processing that entry during a subsequent NF-instance listing. Access to the NRF HTTP/2 interface is required, and exploitation aborts open5gs-nrfd and leaves network-function discovery unresponsive.

The record

CVE
CVE-2025-41068
Published
Oct 27, 2025
Updated
Oct 27, 2025
Vendor
Open5GS
Product
Open5GS
Classifications
CWE-617, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.7.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open5GS · Open5GSversion=0 <2.7.5

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7Spanish National Cybersecurity Institute, S.A. (INCIBE)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

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-617Reachable Assertion
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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