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Description

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 Reserved 2026-05-16 | Published 2026-05-17 | Updated 2026-05-17 | Assigner VulDB




MEDIUM: 5.3CVSS: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:P
MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
MEDIUM: 4.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
4.0AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

Denial of Service

Timeline

2026-05-16:Advisory disclosed
2026-05-16:VulDB entry created
2026-05-16:VulDB entry last update

Credits

ZiyuLin (VulDB User) reporter

References

vuldb.com/vuln/364331 (VDB-364331 | Open5GS NRF context.c ogs_sbi_nf_service_add denial of service) vdb-entry technical-description

vuldb.com/vuln/364331/cti (VDB-364331 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/817029 (Submit #817029 | Open5GS NRF v2.7.7 Denial of Service) third-party-advisory

vuldb.com/submit/817030 (Submit #817030 | Open5GS NRF v2.7.7 Denial of Service (Duplicate)) third-party-advisory

github.com/open5gs/open5gs/issues/4465 issue-tracking

github.com/open5gs/open5gs/pull/4534 issue-tracking patch

github.com/open5gs/open5gs/issues/4466 exploit issue-tracking

github.com/...ommit/819db11a08b9736a3576c4f99ceb28f7eb99523a patch

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8744)

nvd.nist.gov (CVE-2026-8744)

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