Home/CVE/A vulnerability was found in Open5GS up to 2.7.7. Affected by this vulnerability is the function pcf_sess_sbi_discover_a
CVE

CVE-2026-8223

A vulnerability was found in Open5GS up to 2.7.7. Affected by this vulnerability is the function pcf_sess_sbi_discover_a

A vulnerability was found in Open5GS up to 2.7.7. Affected by this vulnerability is the function pcf_sess_sbi_discover_and_send of the component sm-policies Endpoint. Performing a manipulation results in denial of service.

It is possible to initiate the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

MEDIUM · CVSS 5.3 EPSS 0.00082
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-404Improper Resource Shutdown or Release
▤

Affected Products & Versions

1
open5gs<= 2.7.7
⚠

Public Exploits & PoCs

1
pocgithub.com · 4438github.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 May 2026 · 03:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/open5gs/open5gs/Product
https://vuldb.com/submit/808442Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/362440Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/362440/ctiPermissions RequiredVDB Entry
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