Medium 4.3Published Aug 12, 2026

CVE-2025-15686Open5GS HSS Service fd_msg_sess_get denial of service

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects n/a Open5GS. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for n/a Open5GS

Exploited in the last 30 days

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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
Weakness (CWE): CWE-404
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Aug 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n/a Open5GS open5gs:open5gs	2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; 2.7.6	CNA record

References

https://vuldb.com/vuln/387279vdb-entry, technical-description
https://vuldb.com/vuln/387279/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2025-15686third-party-advisory
https://vuldb.com/submit/867104third-party-advisory
https://github.com/open5gs/open5gs/issues/4190issue-tracking
https://github.com/user-attachments/files/23847497/HSS_ULR_error_poc.pcapng.zipexploit
https://github.com/open5gs/open5gs/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.