Open5GS up to 2.7.6 CER init.c diam_log_func assertion

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k2.35

Summaryinfo

A vulnerability identified as critical has been detected in Open5GS up to 2.7.6. Affected by this vulnerability is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. This manipulation causes assertion. This vulnerability is tracked as CVE-2025-15684. The attack is possible to be carried out remotely. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Open5GS up to 2.7.6. It has been declared as critical. Affected by this vulnerability is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-15684. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Upgrading to version 2.7.7 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch c1a803516a3c0485696cb9bcca7a80ad857c7383 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Open5GS 2.7.7
Patch: c1a803516a3c0485696cb9bcca7a80ad857c7383

Timelineinfo

08/09/2026 Advisory disclosed
08/09/2026 +0 days VulDB entry created
08/09/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4155
Status: Confirmed

CVE: CVE-2025-15684 (🔒)
GCVE (CVE): GCVE-0-2025-15684
GCVE (VulDB): GCVE-100-387277
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/09/2026 19:49
Changes: 08/09/2026 19:49 (62)
Complete: 🔍
Submitter: WeiYi
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #867102: Open5GS v2.7.6-103-g1c1d9e1 Denial of Service (by WeiYi)

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