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Vulnerability record · CVE-2025-56568 · published 30 April 2026

CVE-2025-56568: Assertion failure vulnerability in the PCO (Protocol Configuration Options) parser in the SMF (Session Managem…

Assertion failure vulnerability in the PCO (Protocol Configuration Options) parser in the SMF (Session Management Function) component of Open5GS before v2.7.5 allows remote attackers to cause denial of service via specially crafted NGAP messages containing malformed length fields in protocol configuration data.

7.5 CVSS 3.1 High EPSS 0.33% · top 76.2% CWE-617 · CWE-617 Deferred
7.5CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Assertion failure vulnerability in the PCO (Protocol Configuration Options) parser in the SMF (Session Management Function) component of Open5GS before v2.7.5 allows remote attackers to cause denial of service via specially crafted NGAP messages containing malformed length fields in protocol configuration data.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

LinkTags
https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e
https://github.com/open5gs/open5gs/issues/3969

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Source: NIST National Vulnerability Database (record CVE-2025-56568), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.