PT-2026-39441 · Open5Gs · Open5Gs

Linziyu · Published 2026-05-10 · Updated 2026-05-10 · CVE-2026-8223

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8

Description A denial of service issue exists in the pcf sess sbi discover and send() function of the sm-policies endpoint. A remote attacker can trigger this condition through manipulation, causing the service to become unavailable.

Recommendations Update to a version newer than 2.7.7. As a temporary workaround, restrict access to the sm-policies endpoint to minimize the risk of exploitation.

Exploit

Fix

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-8223

Affected Products

Open5Gs

References · 7

• 🔥 https://github.com/open5gs/open5gs/issues/4438 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-8223 · Security Note
• https://vuldb.com/submit/808442 · Note
• https://vuldb.com/vuln/362440 · Note
• https://vuldb.com/vuln/362440/cti · Note
• https://github.com/open5gs/open5gs · Note
• https://twitter.com/VulmonFeeds/status/2053349589562818843 · Twitter Post