CVE-2026-8249: Denial of Service in Open5GS
A denial of service vulnerability exists in Open5GS versions up to 2. 7. 7 in the SMF component, specifically in the function update_authorized_pcc_rule_and_qos. This flaw can be exploited remotely without user interaction or privileges. The vulnerability has a medium severity rating with a CVSS 4. 0 score of 5. 3. No official patch or remediation has been announced by the vendor as of the publication date. Exploit code has been published, but there are no confirmed reports of exploitation in the wild.
AI Analysis
Technical Summary
CVE-2026-8249 is a medium severity denial of service vulnerability in Open5GS up to version 2.7.7. It affects the SMF component's function update_authorized_pcc_rule_and_qos in the file /src/smf/npcf-handler.c. The flaw allows remote attackers to cause a denial of service without requiring privileges or user interaction. The vulnerability was responsibly disclosed but remains unpatched, and exploit code is publicly available.
Potential Impact
Successful exploitation results in denial of service impacting the SMF component of Open5GS, potentially disrupting service availability. There is no indication of privilege escalation, data confidentiality, or integrity impact. No confirmed exploitation in the wild has been reported.
Mitigation Recommendations
No official patch or remediation is currently available. Users should monitor the Open5GS project for updates and apply any future fixes promptly. Until a fix is released, consider implementing network-level protections to limit exposure of the SMF component to untrusted sources. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-8249: Denial of Service in Open5GS
Description
A denial of service vulnerability exists in Open5GS versions up to 2. 7. 7 in the SMF component, specifically in the function update_authorized_pcc_rule_and_qos. This flaw can be exploited remotely without user interaction or privileges. The vulnerability has a medium severity rating with a CVSS 4. 0 score of 5. 3. No official patch or remediation has been announced by the vendor as of the publication date. Exploit code has been published, but there are no confirmed reports of exploitation in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8249 is a medium severity denial of service vulnerability in Open5GS up to version 2.7.7. It affects the SMF component's function update_authorized_pcc_rule_and_qos in the file /src/smf/npcf-handler.c. The flaw allows remote attackers to cause a denial of service without requiring privileges or user interaction. The vulnerability was responsibly disclosed but remains unpatched, and exploit code is publicly available.
Potential Impact
Successful exploitation results in denial of service impacting the SMF component of Open5GS, potentially disrupting service availability. There is no indication of privilege escalation, data confidentiality, or integrity impact. No confirmed exploitation in the wild has been reported.
Mitigation Recommendations
No official patch or remediation is currently available. Users should monitor the Open5GS project for updates and apply any future fixes promptly. Until a fix is released, consider implementing network-level protections to limit exposure of the SMF component to untrusted sources. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-10T14:39:59.197Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a010bf3cbff5d8610025339
Added to database: 5/10/2026, 10:51:31 PM
Last enriched: 5/10/2026, 11:06:22 PM
Last updated: 5/11/2026, 12:09:17 AM
Views: 5
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