What is the CVSS score of CVE-2025-29646?

CVE-2025-29646 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Open5gs are affected by CVE-2025-29646?

Open5gs UPF versions 2.7.2 and earlier are vulnerable to remote denial-of-service attacks that can disrupt 5G network packet forwarding services.

Is there a public PoC exploit available for CVE-2025-29646?

Yes, a public proof-of-concept exploit is available for CVE-2025-29646. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-29646?

Within 24 hours: Inventory all Open5gs deployments and identify systems running version 2.7.2 or earlier; assess exposure to untrusted PFCP traffic sources. Within 7 days: Implement network segmentation to restrict PFCP traffic to trusted control plane nodes only; enable detailed logging of PFCP SessionEstablishmentRequest packets for threat detection. Within 30 days: Monitor vendor security advisories for patch availability; develop and test upgrade plan to patched versions when released.

Open5gs CVE-2025-29646

EUVD-2025-18660 HIGH

Improper Input Validation (CWE-20)

2025-06-18 cve@mitre.org

Denial Of Service Open5gs

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 14, 2026 - 22:49 euvd

EUVD-2025-18660

Analysis Generated

Mar 14, 2026 - 22:49 vuln.today

PoC Detected

Jul 09, 2025 - 18:27 vuln.today

Public exploit code

CVE Published

Jun 18, 2025 - 18:15 nvd

HIGH 7.1

DescriptionCVE.org

An issue in upf in open5gs 2.7.2 and earlier allows a remote attacker to cause a Denial of Service via a crafted PFCP SessionEstablishmentRequest packet with restoration indication = true and (teid = 0 or teid >= ogs_pfcp_pdr_teid_pool.size).