CVE-2026-8743CWE-266CWE-285

CVE-2026-8743

Medium · published May 17, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
32.7
In the wild
Unconfirmed
What it is

A vulnerability was found in Open5GS up to 2.7.6. This impacts the function ran_ue_find_by_amf_ue_ngap_id of the file src/amf/context.c of the component AMF/MME. Performing a manipulation results in improper authorization. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The patch is named 5746b8576cfceec18ed87eb7d8cf11b1fb4cd8b1. It is suggested to install a patch to address this issue.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00396 · 32.7th percentile
Weaknesses
CWE-266 · Incorrect Privilege Assignment; CWE-285 · Improper Authorization
Published
2026-05-17T14:16Z
Affected products (1)
ProductVersionsFixed in
open5gs/open5gs≤ 2.7.6—
References (8)
https://github.com/open5gs/open5gs/ · [email protected]https://github.com/open5gs/open5gs/commit/5746b8576cfceec18ed87eb7d8cf11b1fb4cd8b1 · [email protected]https://github.com/open5gs/open5gs/issues/4498 · [email protected]https://github.com/open5gs/open5gs/pull/4553 · [email protected]https://vuldb.com/cve/CVE-2026-8743 · [email protected]https://vuldb.com/submit/814559 · [email protected]https://vuldb.com/vuln/364330 · [email protected]https://vuldb.com/vuln/364330/cti · [email protected]
EPSS history
Timeline
  • 17 MAY 09:00Z
    Open5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id improper authorization
    cvelistv5