CVE-2026-8745: Denial of Service in Open5GS
CVE-2026-8745 is a medium severity vulnerability in Open5GS versions up to 2. 7. 7. It affects the ogs_timer_add function within the AUSF component, specifically in the /src/ausf/nausf-handler. c library. The vulnerability allows a remote attacker to cause a denial of service by manipulating this function. Although an exploit is publicly available, there are no known exploits in the wild at this time. The Open5GS project has been informed but has not yet responded or provided a patch.
AI Analysis
Technical Summary
This vulnerability in Open5GS up to version 2.7.7 involves the ogs_timer_add function in the AUSF component's nausf-handler.c source file. The flaw allows remote attackers to trigger a denial of service condition by manipulating the timer addition process. The vulnerability is tracked as CWE-404 (Improper Resource Shutdown or Release). The CVSS 4.0 base score is 5.3, indicating medium severity with network attack vector, low attack complexity, and no privileges or user interaction required. No official patch or remediation has been released, and the vendor has not responded to the issue report.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting the availability of the AUSF component in Open5GS. This could affect the operation of the affected network functions relying on Open5GS, leading to service interruptions. There are no reports of active exploitation in the wild, but a public exploit exists.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official Open5GS channels for updates. In the meantime, consider implementing network-level protections to limit exposure of the AUSF component to untrusted networks.
CVE-2026-8745: Denial of Service in Open5GS
Description
CVE-2026-8745 is a medium severity vulnerability in Open5GS versions up to 2. 7. 7. It affects the ogs_timer_add function within the AUSF component, specifically in the /src/ausf/nausf-handler. c library. The vulnerability allows a remote attacker to cause a denial of service by manipulating this function. Although an exploit is publicly available, there are no known exploits in the wild at this time. The Open5GS project has been informed but has not yet responded or provided a patch.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS up to version 2.7.7 involves the ogs_timer_add function in the AUSF component's nausf-handler.c source file. The flaw allows remote attackers to trigger a denial of service condition by manipulating the timer addition process. The vulnerability is tracked as CWE-404 (Improper Resource Shutdown or Release). The CVSS 4.0 base score is 5.3, indicating medium severity with network attack vector, low attack complexity, and no privileges or user interaction required. No official patch or remediation has been released, and the vendor has not responded to the issue report.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting the availability of the AUSF component in Open5GS. This could affect the operation of the affected network functions relying on Open5GS, leading to service interruptions. There are no reports of active exploitation in the wild, but a public exploit exists.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official Open5GS channels for updates. In the meantime, consider implementing network-level protections to limit exposure of the AUSF component to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-16T12:38:35.488Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
- Gcve Source
- db.gcve.eu
Threat ID: 6a099de7ec166c07b0bb6f88
Added to database: 5/17/2026, 10:52:23 AM
Last enriched: 5/17/2026, 10:52:27 AM
Last updated: 5/17/2026, 12:02:33 PM
Views: 5
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