Medium severity · published May 17, 2026
CVE-2026-8744
Open5GS NRF context.c ogs_sbi_nf_service_add denial of service
6.5
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5GS · Open5gs
2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; +2 more · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8744
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8744
Product
https://github.com/open5gs/open5gs/
Patch
https://github.com/open5gs/open5gs/commit/819db11a08b9736a3576c4f99ceb28f7eb99523a
Exploit
https://github.com/open5gs/open5gs/issues/4465
Exploit
https://github.com/open5gs/open5gs/issues/4466
Issue Tracking
https://github.com/open5gs/open5gs/pull/4534
Third Party Advisory
https://vuldb.com/submit/817029
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