CVE-2026-30046Public exploitNetwork attack vector

Service crash via missing pduSessionId path parameter

Published Aug 27, 2026 · Updated Aug 27, 2026

Reachable assertion in Open5GS 2.7.6 NUDM-UECM allows remote attackers to crash the UDM process with a crafted DELETE request. The UDM state dispatcher leaves sess unset when the request omits the pduSessionId path segment, then asserts sess in src/udm/udm-sm.c. Network reachability to the UDM service is required, and exploitation aborts the process, interrupting UDM service.

CVSS severityUnavailable
Unscored
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

Reachable assertion in Open5GS 2.7.6 NUDM-UECM allows remote attackers to crash the UDM process with a crafted DELETE request. The UDM state dispatcher leaves sess unset when the request omits the pduSessionId path segment, then asserts sess in src/udm/udm-sm.c. Network reachability to the UDM service is required, and exploitation aborts the process, interrupting UDM service.

The record

CVE
CVE-2026-30046
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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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