CVE-2026-82589

Open5GS N1-N2 Message namf-handler.c amf_namf_comm_handle_n1_n2_message_transfer denial of service

MEDIUM
4.3
CVSS Score
Published: August 30, 2026 at 10:15 PM UTC
Updated: August 31, 2026 at 09:06 PM UTC
1 product affected across 1 vendorOpen5GS

Using Open5GS by N/A?

Get instant alerts when new vulnerabilities affect Open5GS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

A security flaw has been discovered in Open5GS up to 2.7.7. Impacted is the function amf_namf_comm_handle_n1_n2_message_transfer of the file src/amf/namf-handler.c of the component N1-N2 Message Handler. Performing a manipulation of the argument N1N2MessageTransferReqData.n2InfoContainer.smInfo.n2InfoContent.ngapIeType results in denial of service. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.8.0 is recommended to address this issue. The patch is named abf8a836564b966b5141110fc25ed413c4f17522. It is advisable to upgrade the affected component.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 2.8.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/397084
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/397084/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-82589
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/891892
ExploitIssue Tracking
Source: cverecord
https://github.com/open5gs/open5gs/issues/4396
Product
Source: cverecord
https://github.com/open5gs/open5gs/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-404

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card