CVE-2026-42082Disclosure(free5gc / free5gc)

LOWCVSS 5.4 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the AMF in Free5GC does not enforce the concurrent security procedure rules defined in 3GPP TS 33.501 §6.9.5.1. The AMF does not check for ongoing N2 handover procedures before initiating a NAS Security Mode Command, and vice versa. This can lead to mismatches between NAS and AS security contexts in the network and the UE. This vulnerability is fixed in 4.2.2.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-358

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • free5gc

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
free5gc

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-29: 1Technical Details · 2026-05-29: 105-29
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • DailyCVE@dailycve
    Disclosure

    🟠 free5GC, Security Context Mismatch, #CVE-2026-42082 (Medium) -DC-May2026-37 https://dailycve.com/free5gc-security-context-mismatch-cve-2026-42082-medium-dc-may2026-37/

    Post summary

    The post announces the medium‑severity CVE‑2026‑42082 vulnerability in free5GC, describing a security context mismatch but provides no PoC, exploitation, patch, or claiming false positive.

    0000051
    207 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appfree5gcfree5gc---

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