Improperly Implemented Security Check for Standard Affecting github.com/free5gc/amf/internal/gmm package, versions <1.4.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published10 May 2026
- disclosed7 May 2026
- creditSJNA0414
Introduced: 7 May 2026
CVE-2026-42082 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/amf/internal/gmm to version 1.4.5 or higher.
Overview
Affected versions of this package are vulnerable to Improperly Implemented Security Check for Standard due to missing concurrent procedure validation in the SecurityMode and handleHandoverRequiredMain functions. An attacker can cause mismatches between security contexts, potentially leading to handover failures or security verification issues by triggering concurrent NAS Security Mode Command and N2 handover procedures.