PT-2026-38627 · Open5Gs · Open5Gs

Linziyu · CVE-2026-8123 · Published 2026-05-08 · Updated 2026-05-11

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

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

Description A remote denial of service can be triggered in the NSSF component. The issue exists within the ogs sbi discovery option add snssais() function located in the /lib/sbi/message.c library.

Recommendations Update to a version later than 2.7.7. As a temporary workaround, restrict access to the NSSF component to minimize the risk of exploitation.

Exploit

Fix

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-8123

Affected Products

Open5Gs

References · 12

• 🔥 https://github.com/open5gs/open5gs/issues/4436 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8123.json · Exploit
• 🔥 https://vuldb.com/submit/808426 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-8123 · Security Note
• https://osv.dev/vulnerability/CVE-2026-8123 · Vendor Advisory
• https://vuldb.com/vuln/361910/cti · Note
• https://github.com/open5gs/open5gs · Note
• https://t.me/cveNotify/162651 · Telegram Post
• https://twitter.com/CVEnew/status/2053559145253482993 · Twitter Post
• https://twitter.com/CVEarity/status/2052753775316889876 · Twitter Post
• https://t.me/cveNotify/163043 · Telegram Post
• https://vuldb.com/vuln/361910 · Note