CVE-2025-1925Public exploitNetwork attack vector

AMF crash via duplicate PDU session requests

Published Mar 4, 2025 · Updated Mar 4, 2025

Denial of service in the Open5GS AMF in 2.7.0 through 2.7.2 allows remote attackers to crash mobility and session services via a UE. The amf_nsmf_pdusession_handle_update_sm_context function processes a duplicate PDU session with a NULL SUPI, builds a NULL URI resource, and triggers an ogs_uridup assertion. A standard UE and gNB sequence is sufficient; the crash disconnects registered UEs and blocks new registrations until the AMF restarts.

CVSS severity6.9
Medium
EPSS probability0.81%
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 the Open5GS AMF in 2.7.0 through 2.7.2 allows remote attackers to crash mobility and session services via a UE. The amf_nsmf_pdusession_handle_update_sm_context function processes a duplicate PDU session with a NULL SUPI, builds a NULL URI resource, and triggers an ogs_uridup assertion. A standard UE and gNB sequence is sufficient; the crash disconnects registered UEs and blocks new registrations until the AMF restarts.

The record

CVE
CVE-2025-1925
Published
Mar 4, 2025
Updated
Mar 4, 2025
Vendor
Open5GS
Product
Open5GS
Classifications
CWE-404, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 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=2.7.0
  2. Affected versionversion=2.7.1
  3. Affected versionversion=2.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open5GS · Open5GSversion=2.7.0; version=2.7.1; version=2.7.2

Published CVSS scores

6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.0VulDBAV:N/AC:L/Au:N/C:N/I:N/A:P
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
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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