Answer in brief
CVE-2026-8743 records a Medium severity (CVSS 5.3) vulnerability in Open5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id improper authorization. The current sources do not mark it as known exploited. The current feed maps n/a/Open5GS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/Open5GS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/Open5GSgeneric | 2.7.0 || 2.7.1 || 2.7.2 || 2.7.3 || 2.7.4 || 2.7.5 || 2.7.6 | Not reported |
Published upstream
May 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 21, 2026
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.
Quoted source text, attributed separately from HOL analysis.