Is this vulnerability remotely exploitable?

Yes. An attacker who can generate or control 5G signaling traffic that reaches the open5gs core (for example by operating a UE, simulator, or compromised RAN element) can exploit the flaw remotely.

Does an attacker need authenticated or subscriber-level access?

Typically, the attacker needs the ability to participate in the signaling path—often as a UE or emulator—rather than traditional application-layer authentication. The exact access requirements depend on how tightly the RAN and core network are controlled.

What is the safest general fix pattern for developers and operators?

The safest pattern is to enforce strict, protocol-compliant validation on all PDU Session Modification Request fields, verify that messages are consistent with current session state, and ensure that any unexpected or malformed messages are cleanly rejected without heavy processing or persistent state changes.

Severity:

HIGH RISK

(7.5)

Improper Input Validation & Uncontrolled Resource Consumption (CWE-20, CWE-400) in open5gs PDU Session Handling

CVE-2025-46115

Published:

Apr 30, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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CWE-918

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HIGH

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Unauthorized Access to Internal Resources via SSRF

May 6, 2026

CWE-863

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Denial of Service via Improper Input Validation

CWE:

CWE-20;CWE-400

Impact:

Denial of Service

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Denial of Service via Improper Input Validation

CWE:

CWE-20;CWE-400

Impact:

Denial of Service

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Improper Input Validation & Uncontrolled Resource Consumption (CWE-20, CWE-400) in open5gs PDU Session 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

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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