Improper Resource Shutdown or Release Affecting github.com/free5gc/amf/internal/gmm package, versions <1.4.3
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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- published20 Apr 2026
- disclosed22 Mar 2026
- creditUnknown
Introduced: 22 Mar 2026
CVE-2026-4531 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/amf/internal/gmm to version 1.4.3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Resource Shutdown or Release via the HandleRegistrationComplete() function. An attacker can cause a denial of service by sending an out-of-sequence NAS message during the registration procedure.