CVE-2025-15686: Open5GS · CWE-404
Source GCVE Database
Public exploit available · CVSS 5.3 Medium.
Data as of 9 Nov 2026, 23:23 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 12 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Open5GS | Affected
| Fixed in– |
GitHubopen5gs/open5gspkg:github/open5gs/open5gsOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, consider restricting access to the affected service and monitoring for exploitation attempts.
Description
A denial of service vulnerability exists in Open5GS up to version 2.7.6 in the HSS Service component's fd_msg_sess_get function. The issue arises from manipulation of the Session-Id argument, allowing a remote attacker to cause service disruption. Public exploit code has been disclosed. The vulnerability has a medium severity rating with a CVSS score of 4.3.
References
- nvd.nist.gov/vuln/detail/CVE-2025-15686 (opens in a new tab)
- github.com/open5gs/open5gs/issues/4190 (opens in a new tab)
- github.com/open5gs/open5gs (opens in a new tab)
- github.com/user-attachments/files/23847497/HSS_ULR_error_poc.pcapng.zip (opens in a new tab)
- vuldb.com/cve/CVE-2025-15686 (opens in a new tab)
- vuldb.com/submit/867104 (opens in a new tab)
- vuldb.com/vuln/387279 (opens in a new tab)
- vuldb.com/vuln/387279/cti (opens in a new tab)