CVE-2026-8123

Open5GS NSSF message.c ogs_sbi_discovery_option_add_snssais denial of service

MEDIUM
6.5
CVSS Score
Published: May 8, 2026 at 01:00 AM UTC
Updated: June 17, 2026 at 11:03 AM UTC
1 product affected across 1 vendorOpen5GS

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

A vulnerability was determined in Open5GS up to 2.7.7. This impacts the function ogs_sbi_discovery_option_add_snssais in the library /lib/sbi/message.c of the component NSSF. This manipulation causes denial of service. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Affected

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

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/361910
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/361910/cti
Third Party AdvisoryExploitVDB Entry
Source: cverecord
https://vuldb.com/submit/808426
ExploitIssue Tracking
Source: cverecord
https://github.com/open5gs/open5gs/issues/4436
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

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-404

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