CVE-2025-15684: Reachable Assertion in Open5GS
CVE-2025-15684 is a medium severity vulnerability in Open5GS up to version 2.7.6. It affects the diam_log_func function in the CER Handler component, causing a reachable assertion that can be triggered remotely. Exploit code is publicly available. Upgrading to Open5GS version 2.7.7 addresses this issue.
AI Analysis
Technical Summary
This vulnerability in Open5GS affects the diam_log_func function within the CER Handler component (file lib/diameter/common/init.c). It results in a reachable assertion that can be triggered remotely without authentication or user interaction. The vulnerability exists in versions 2.7.0 through 2.7.6. A patch identified by commit c1a803516a3c0485696cb9bcca7a80ad857c7383 was released in version 2.7.7 to fix this issue. Public exploit code is available, increasing the risk of exploitation.
Potential Impact
An attacker can remotely trigger an assertion failure in the affected Open5GS component, potentially causing denial of service or disruption of service. The vulnerability does not require privileges or user interaction, making it easier to exploit remotely. However, the CVSS score of 6.9 indicates a medium severity impact.
Mitigation Recommendations
Upgrade Open5GS to version 2.7.7 or later, which includes the official patch (commit c1a803516a3c0485696cb9bcca7a80ad857c7383) that fixes this vulnerability. No other mitigation or temporary workaround is indicated.
CVE-2025-15684: Reachable Assertion in Open5GS
Description
CVE-2025-15684 is a medium severity vulnerability in Open5GS up to version 2.7.6. It affects the diam_log_func function in the CER Handler component, causing a reachable assertion that can be triggered remotely. Exploit code is publicly available. Upgrading to Open5GS version 2.7.7 addresses this issue.
CVSS v4.0
Score 6.9medium
Affected software
pkg:github/open5gs/open5gscpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS affects the diam_log_func function within the CER Handler component (file lib/diameter/common/init.c). It results in a reachable assertion that can be triggered remotely without authentication or user interaction. The vulnerability exists in versions 2.7.0 through 2.7.6. A patch identified by commit c1a803516a3c0485696cb9bcca7a80ad857c7383 was released in version 2.7.7 to fix this issue. Public exploit code is available, increasing the risk of exploitation.
Potential Impact
An attacker can remotely trigger an assertion failure in the affected Open5GS component, potentially causing denial of service or disruption of service. The vulnerability does not require privileges or user interaction, making it easier to exploit remotely. However, the CVSS score of 6.9 indicates a medium severity impact.
Mitigation Recommendations
Upgrade Open5GS to version 2.7.7 or later, which includes the official patch (commit c1a803516a3c0485696cb9bcca7a80ad857c7383) that fixes this vulnerability. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-09T17:44:28.777Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7bdd68bf8831d539d5c9fc
Added to database: 08/12/2026, 02:41:44 UTC
Last enriched: 08/12/2026, 03:01:26 UTC
Last updated: 08/12/2026, 03:01:26 UTC
Views: 3
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