What is CVE-2026-8744?

CVE-2026-8744 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-17.

How severe is CVE-2026-8744?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Open5gs

CVE-2026-8744

A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remediate this issue.

Published 2026-05-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.008 (55.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.008 · change: +0.004

Affected products

Open5gs
Open5gs — versions 2.7.0, 2.7.1, 2.7.2

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

vuldb.com/vuln/364331 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/vuln/364331/cti (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/submit/817029 (VDB Entry, Third Party Advisory, third-party-advisory)
vuldb.com/submit/817030 (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/open5gs/open5gs/issues/4465 (issue-tracking, Exploit, Issue Tracking)
github.com/open5gs/open5gs/pull/4534 (issue-tracking, Patch, patch, Issue Tracking)
github.com/open5gs/open5gs/issues/4466 (issue-tracking, Exploit, exploit, Issue Tracking)
github.com/open5gs/open5gs/commit/819db11a08b9736a3576c4f99ceb28f7eb99523a (Patch, patch)
github.com/open5gs/open5gs/ (Product, product)

Frequently asked questions

What is CVE-2026-8744?: CVE-2026-8744 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-17.
How severe is CVE-2026-8744?: Medium severity. CVSS v3 base score is 4.3 out of 10.