Is this vulnerability remotely exploitable?

Yes, it can be exploited remotely over the PFCP control-plane interface. An attacker who can send PFCP Association Setup Requests to the UPF can potentially trigger the issue, even without a preexisting PFCP association.

What level of access does an attacker need?

The attacker needs network-level access to the UPF's PFCP endpoint. This is typically within the operator's control network, but any misconfiguration or exposure that allows untrusted actors to send PFCP traffic could make exploitation feasible.

What is the safest general fix pattern for this issue?

The safest fix pattern is to implement strict, specification-compliant validation of PFCP Association Setup Requests and to harden the association state machine so that malformed or inconsistent messages are rejected without updating internal state. Error handling should ensure that failure to parse or validate a message cannot leave the UPF in a partially initialized or ambiguous state.

Severity:

HIGH RISK

(7.5)

Improper Input Validation (CWE-20) in free5GC go-UPF PFCP Association Handling

CVE-2025-69232

Published:

Feb 23, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Improper Input Validation / Protocol State Handling

CWE:

CWE-20

Impact:

Denial of Service

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Input Validation / Protocol State Handling

CWE:

CWE-20

Impact:

Denial of Service

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Improper Input Validation (CWE-20) in free5GC go-UPF PFCP Association Handling

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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