Is this vulnerability remotely exploitable?

Yes. Any actor who can reach the UDM Nudm_UECM DELETE service over the network can trigger verbose error responses by sending malformed `pduSessionId` values.

Does an attacker need authentication or special privileges?

Typically no, as exploitation only requires the ability to send requests to the exposed control-plane endpoint. However, actual access requirements depend on how the operator segments and protects the free5GC control-plane network.

What is the safest general fix pattern for this issue?

Introduce strict input validation for identifiers like `pduSessionId`, then wrap parsing and downstream logic in a robust error-handling layer that emits standardized, high-level error responses without exposing internal parsing or implementation details.

Severity:

HIGH RISK

(7.5)

Improper Input Handling and Error Exposure (CWE-20, CWE-754) in free5GC UDM Nudm_UECM DELETE Service

CVE-2025-69250

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 and Error Handling

CWE:

CWE-20;CWE-754

Impact:

Information Disclosure and Service Fingerprinting

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Input Validation and Error Handling

CWE:

CWE-20;CWE-754

Impact:

Information Disclosure and Service Fingerprinting

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Improper Input Handling and Error Exposure (CWE-20, CWE-754) in free5GC UDM Nudm_UECM DELETE Service

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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