CVE-2025-15686

Open5GS HSS Service fd_msg_sess_get denial of service

MEDIUM
4.3
CVSS Score
Published: August 12, 2026 at 02:30 AM UTC
Updated: September 29, 2026 at 11:10 AM UTC
1 product affected across 1 vendorOpen5GS

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

A vulnerability has been found in Open5GS up to 2.7.6. Affected by this issue is the function fd_msg_sess_get of the component HSS Service. Such manipulation of the argument Session-Id leads to denial of service. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project locked and limited conversation to collaborators.

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 (7)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/387279
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/387279/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2025-15686
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/867104
Issue Tracking
Source: cverecord
https://github.com/open5gs/open5gs/issues/4190
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

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