CVE-2026-82587

medium

Description

A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function amf_namf_comm_decode_ue_mm_context_list of the file src/amf/namf-handler.c of the component AMF. This manipulation of the argument ueContext.mmContextList[*].allowedNssai causes memory corruption. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.8.0 is able to resolve this issue. Patch name: abf8a836564b966b5141110fc25ed413c4f17522. It is recommended to upgrade the affected component.

References

https://vuldb.com/vuln/397082/cti

https://vuldb.com/vuln/397082

https://vuldb.com/submit/891890

https://vuldb.com/cve/CVE-2026-82587

https://github.com/open5gs/open5gs/releases/tag/v2.8.0

https://github.com/open5gs/open5gs/issues/4398

https://github.com/open5gs/open5gs/commit/abf8a836564b966b5141110fc25ed413c4f17522

https://github.com/open5gs/open5gs/

Details

Source: Mitre, NVD

Published: 2026-08-30

Updated: 2026-08-30

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium