CVE-2025-56568

State: Published
Severity: 7.5 High
Published: Apr 30, 2026
Updated: May 4, 2026
Reserved: Aug 17, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-617 Reachable Assertion

Affected Products

Product	Versions
n/an/a	n/aAffected

References

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

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