CVE-2025-15684: Reachable Assertion in Open5GS
A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation results in reachable assertion. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.7.7 is able to address this issue. The patch is identified as c1a803516a3c0485696cb9bcca7a80ad857c7383. It is advisable to upgrade the affected component.
AI Analysis
Technical Summary
CVE-2025-15684 is a reachable assertion vulnerability in the diam_log_func function within the CER Handler component of Open5GS versions up to 2.7.6. This vulnerability can be triggered remotely and results in an assertion failure, which may cause a denial of service condition. The vulnerability is identified as CWE-617 (Reachable Assertion). A patch addressing this issue is included in Open5GS version 2.7.7, with the fix commit c1a803516a3c0485696cb9bcca7a80ad857c7383. The CVSS v3.1 base score is 5.3, reflecting medium severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability.
Potential Impact
The vulnerability allows remote attackers to trigger an assertion failure in the affected Open5GS component, potentially causing a denial of service. There is no impact on confidentiality or integrity according to the CVSS vector. No active exploitation in the wild has been reported.
Mitigation Recommendations
Upgrade Open5GS to version 2.7.7 or later, which contains the official fix for this vulnerability. Since this is an on-premises software component, applying the patch is required to remediate the issue. There are no vendor advisories indicating that no action is needed or that the issue is already mitigated.
CVE-2025-15684: Reachable Assertion in Open5GS
Description
A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation results in reachable assertion. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.7.7 is able to address this issue. The patch is identified as c1a803516a3c0485696cb9bcca7a80ad857c7383. It is advisable to upgrade the affected component.
CVSS v4.0
Score 6.9medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-15684 is a reachable assertion vulnerability in the diam_log_func function within the CER Handler component of Open5GS versions up to 2.7.6. This vulnerability can be triggered remotely and results in an assertion failure, which may cause a denial of service condition. The vulnerability is identified as CWE-617 (Reachable Assertion). A patch addressing this issue is included in Open5GS version 2.7.7, with the fix commit c1a803516a3c0485696cb9bcca7a80ad857c7383. The CVSS v3.1 base score is 5.3, reflecting medium severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability.
Potential Impact
The vulnerability allows remote attackers to trigger an assertion failure in the affected Open5GS component, potentially causing a denial of service. There is no impact on confidentiality or integrity according to the CVSS vector. No active exploitation in the wild has been reported.
Mitigation Recommendations
Upgrade Open5GS to version 2.7.7 or later, which contains the official fix for this vulnerability. Since this is an on-premises software component, applying the patch is required to remediate the issue. There are no vendor advisories indicating that no action is needed or that the issue is already mitigated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-c5w8-855p-98pc
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-15684"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7c9b64bf8831d539cdefaa
Added to database: 08/12/2026, 16:12:20 UTC
Last enriched: 08/12/2026, 17:12:35 UTC
Last updated: 09/26/2026, 01:47:37 UTC
Views: 32
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