Medium 6.3Published May 17, 2026

CVE-2026-8743Open5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id improper authorization

Updated under an hour ago (Oct 26, 2026, 5:10 AM ET)

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It affects n/a Open5GS. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for n/a Open5GS

Exploited in the last 30 days

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.

CVSS: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Weakness (CWE): CWE-285, CWE-266
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n/a Open5GS open5gs:open5gs	2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; 2.7.6	CNA record
open5gs open5gs open5gs:open5gs	through 2.7.6	NVD

References

https://vuldb.com/vuln/364330vdb-entry, technical-description, third-party-advisory
https://vuldb.com/vuln/364330/ctisignature, permissions-required, vdb-entry
https://vuldb.com/cve/CVE-2026-8743third-party-advisory
https://vuldb.com/submit/814559third-party-advisory, vdb-entry
https://github.com/open5gs/open5gs/issues/4498exploit, issue-tracking
https://github.com/open5gs/open5gs/pull/4553issue-tracking, patch
https://github.com/open5gs/open5gs/commit/5746b8576cfceec18ed87eb7d8cf11b1fb4cd8b1patch
https://github.com/open5gs/open5gs/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.