CVE-2026-41136
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.5
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- EPSS probability
- 0.28%
- CWE
- CWE-440
- Published
- 2026-04-21
- Last modified
- 2026-04-22
Affected products
- free5gc amf
Weakness type
Related vulnerabilities
- CVE-2026-16769 — RS9116W/SiWx917 plaintext pause encryption request causes DOS
- CVE-2026-65934 — BT122 plaintext pause encryption request causes DOS
- CVE-2026-65932 — BT122 stops advertising
- CVE-2026-8806 — Denial-of-service (DoS) vulnerability in MELSEC iQ-F Series FX5-ENET/IP Ethernet module
- CVE-2026-42752 — WordPress Stripe Payments plugin <= 2.0.98 - Bypass Vulnerability vulnerability
- CVE-2026-49316 — Indian Scout Bobber 2025 WCM CAN bus-off attack silently bypasses anti-theft shutdown
- CVE-2026-42534 — Jostle logic bypass degrades resolution performance
- CVE-2026-35040 — fast-jwt: Stateful RegExp (/g or /y) causes non-deterministic allowed-claim validation (logical DoS)