Is CVE-2026-41136 actively exploited?

No active exploitation of CVE-2026-41136 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-41136 be exploited remotely?

Yes. CVE-2026-41136 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-41136?

CVE-2026-41136 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-41136

CWE-440Published: April 22, 2026· Updated: Apr 23, 2026

5.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.9th

Official Description

free5GC AMF provides Access & Mobility Management Function (AMF) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. Prior to version 1.4.3, the `HTTPUEContextTransfer` handler in `internal/sbi/api_communication.go` does not include a `default` case in the `Content-Type` switch statement. When a request arrives with an unsupported `Content-Type`, the deserialization step is silently skipped, `err` remains `nil`, and the processor is invoked with a completely uninitialized `UeContextTransferRequest` object. Version 1.4.3 contains a fix.

NVD Source

Technical Analysis

CVE-2026-41136 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.