CVE-2025-29339

High

Description

An issue in UPF in Open5GS UPF versions up to v2.7.2 results an assertion failure vulnerability in PFCP session parameter validation. When processing a PFCP Session Establishment Request with PDN Type=0, the UPF fails to handle the invalid value propagated from SMF (or via direct attack), triggering a fatal assertion check and causing a daemon crash.

SeverityHigh
CVSS7.5
Exploit probability—
ProductOpen5gs
PublishedApr 22, 2025
First seenApr 22, 2025
Weakness typeCWE-617CWE-617

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
open5gs open5gsv ≤ 2.7.2—

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CVE-2025-29339 · Open5gs · Dark Radar