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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-8728

A security vulnerability has been detected in Open5GS up to 2.7.7.

LOW 2.1EPSS 0.39%

Does this matter?

Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.

Description

A security vulnerability has been detected in Open5GS up to 2.7.7. The impacted element is the function ogs_sbi_discovery_option_parse_plmn_list in the library /lib/sbi/conv.c of the component NRF. Such manipulation of the argument target-plmn-list leads to denial of service. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS 4.0
2.1 LOWCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.39% probability · 32th percentile
CISA KEV
Not listed
Weakness
CWE-404
Affected
open5gs/open5gs
Source
cna@vuldb.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.