CVE-2026-8743: Improper Authorization in Open5GS
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.
AI Analysis
Technical Summary
This vulnerability in Open5GS up to version 2.7.6 impacts the AMF/MME component's function ran_ue_find_by_amf_ue_ngap_id, causing improper authorization due to insufficient access control. The flaw allows remote attackers to manipulate the function, potentially bypassing authorization checks. The issue has been publicly disclosed along with a patch commit to fix the problem. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low complexity, no privileges required, and no user interaction needed.
Potential Impact
Improper authorization in the affected function could allow remote attackers to perform unauthorized actions within the AMF/MME component of Open5GS. This may lead to unauthorized access or manipulation of user context data. However, the impact is rated medium, reflecting limited scope or complexity of exploitation. No active exploitation in the wild has been reported.
Mitigation Recommendations
A patch is available for this vulnerability, identified by commit 5746b8576cfceec18ed87eb7d8cf11b1fb4cd8b1. It is recommended to apply this patch promptly to remediate the issue. Since this is not a cloud service, remediation depends on the user applying the patch. No vendor advisory was provided to indicate alternative mitigations or no-action status.
CVE-2026-8743: Improper Authorization in Open5GS
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS up to version 2.7.6 impacts the AMF/MME component's function ran_ue_find_by_amf_ue_ngap_id, causing improper authorization due to insufficient access control. The flaw allows remote attackers to manipulate the function, potentially bypassing authorization checks. The issue has been publicly disclosed along with a patch commit to fix the problem. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low complexity, no privileges required, and no user interaction needed.
Potential Impact
Improper authorization in the affected function could allow remote attackers to perform unauthorized actions within the AMF/MME component of Open5GS. This may lead to unauthorized access or manipulation of user context data. However, the impact is rated medium, reflecting limited scope or complexity of exploitation. No active exploitation in the wild has been reported.
Mitigation Recommendations
A patch is available for this vulnerability, identified by commit 5746b8576cfceec18ed87eb7d8cf11b1fb4cd8b1. It is recommended to apply this patch promptly to remediate the issue. Since this is not a cloud service, remediation depends on the user applying the patch. No vendor advisory was provided to indicate alternative mitigations or no-action status.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-16T12:38:24.093Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a098c27ec166c07b0b40a97
Added to database: 5/17/2026, 9:36:39 AM
Last enriched: 5/17/2026, 9:51:40 AM
Last updated: 5/17/2026, 11:45:37 AM
Views: 7
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