CVE-2025-15555

Open5GS VoLTE Cx-Test hss-cx-path.c hss_ogs_diam_cx_mar_cb stack-based overflow

HIGH
8.2
CVSS Score
Published: February 4, 2026 at 08:32 PM UTC
Updated: June 17, 2026 at 08:38 AM UTC
1 product affected across 1 vendorOpen5GS

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Severity
HIGH8.2
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function hss_ogs_diam_cx_mar_cb of the file src/hss/hss-cx-path.c of the component VoLTE Cx-Test. The manipulation of the argument OGS_KEY_LEN results in stack-based buffer overflow. The attack may be launched remotely. The patch is identified as 54dda041211098730221d0ae20a2f9f9173e7a21. A patch should be applied to remediate this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (10)

Issue TrackingExploitThird Party Advisory
Source: cverecord
https://github.com/open5gs/open5gs/issues/4177
Issue TrackingExploitThird Party Advisory
Source: cverecord
https://github.com/open5gs/open5gs/issues/4177#event-21256395700
Product
Source: cverecord
https://github.com/open5gs/open5gs/
VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/343795

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-121CWE-119CWE-787

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