CVE-2025-56568
Assertion failure vulnerability in the PCO (Protocol Configuration Options) parser in the SMF ...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2025-56568- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
EUVDEUVD-2025-209599
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.
- Record
EUVD-2025-209599- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-66c2-wgqr-4j3m
Assertion failure vulnerability in the PCO (Protocol Configuration Options) parser in the SMF ...
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.
- Record
GHSA-66c2-wgqr-4j3m- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-56568- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-04
OSV
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.
- Record
CVE-2025-56568- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-11
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | NVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-56568 is a high vulnerability (CVSS 7.5), published April 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. No source names a fixed version.