CVE-2025-29339Public exploitNetwork attack vector

Daemon crash via invalid PFCP PDN type

Published Apr 22, 2025 · Updated Apr 23, 2025

Reachable assertion in Open5GS UPF 2.7.2 and earlier allows remote attackers to crash the daemon via a crafted PFCP request. The upf_sess_set_ue_ip path leaves session_type invalid for PDN Type 0 and reaches a fatal assertion instead of rejecting the request. Access to the UPF PFCP service on UDP port 8805 is sufficient; exploitation terminates open5gs-upfd and interrupts user-plane service.

CVSS severity7.5
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reachable assertion in Open5GS UPF 2.7.2 and earlier allows remote attackers to crash the daemon via a crafted PFCP request. The upf_sess_set_ue_ip path leaves session_type invalid for PDN Type 0 and reaches a fatal assertion instead of rejecting the request. Access to the UPF PFCP service on UDP port 8805 is sufficient; exploitation terminates open5gs-upfd and interrupts user-plane service.

The record

CVE
CVE-2025-29339
Published
Apr 22, 2025
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-617, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo