CVE-2026-82587CWE-119

CVE-2026-82587

Medium · published August 30, 2026

CVSS v3.1
4.3
EPSS
1%
Percentile
44.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
5.3 · 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/E:P
EPSS
0.00545 · 44.9th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2026-08-30T23:17Z
References (8)
https://github.com/open5gs/open5gs/ · [email protected]https://github.com/open5gs/open5gs/commit/abf8a836564b966b5141110fc25ed413c4f17522 · [email protected]https://github.com/open5gs/open5gs/issues/4398 · [email protected]https://github.com/open5gs/open5gs/releases/tag/v2.8.0 · [email protected]https://vuldb.com/cve/CVE-2026-82587 · [email protected]https://vuldb.com/submit/891890 · [email protected]https://vuldb.com/vuln/397082 · [email protected]https://vuldb.com/vuln/397082/cti · [email protected]
EPSS history
Timeline
  • 01 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 30 AUG 19:00Z
    Open5GS AMF namf-handler.c amf_namf_comm_decode_ue_mm_context_list memory corruption
    cvelistv5