CVE-2026-92417Network attack vectorHinoki check available

SMF crash via unchecked PFCP volume measurement

Published Sep 16, 2026 · Updated Sep 22, 2026

Null pointer dereference in Open5GS 2.0 through 2.8.0 allows remote authenticated users to crash the SMF via a crafted PFCP report. The ogs_pfcp_parse_volume_measurement function reads a flags octet from absent IE data and copies flagged fields from short IEs without checking their declared length. Exploitation requires an associated UPF and a live PDU session, and the demonstrated consequence is SMF service interruption.

CVSS severity7.1
High
EPSS probability0.67%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Null pointer dereference in Open5GS 2.0 through 2.8.0 allows remote authenticated users to crash the SMF via a crafted PFCP report. The ogs_pfcp_parse_volume_measurement function reads a flags octet from absent IE data and copies flagged fields from short IEs without checking their declared length. Exploitation requires an associated UPF and a live PDU session, and the demonstrated consequence is SMF service interruption.

The record

CVE
CVE-2026-92417
Published
Sep 16, 2026
Updated
Sep 22, 2026
Vendor
Open5GS
Product
Open5GS
Classifications
CWE-476, CWE-404, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 2026Record 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=2.0
  2. Affected versionversion=2.1
  3. Affected versionversion=2.2
  4. Affected versionversion=2.3
  5. Affected versionversion=2.4
  6. Affected versionversion=2.5
  7. Affected versionversion=2.6
  8. Affected versionversion=2.7
  9. Affected versionversion=2.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open5GS · Open5GSversion=2.0; version=2.1; version=2.2; version=2.3; version=2.4; version=2.5; version=2.6; version=2.7; version=2.8.0

Published CVSS scores

6.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8VulDB CNAAV:N/AC:L/Au:S/C:N/I:N/A:C
7.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
CWE-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

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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