Heap-based Buffer Overflow Affecting github.com/free5gc/nas/nasmessage package, versions <1.2.1
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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- published26 Sept 2025
- disclosed23 Sept 2025
- credithanyi Luo
Introduced: 23 Sep 2025
NewCVE-2025-56394 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/nas/nasMessage to version 1.2.1 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow due to improper validation of the 5GS mobile identity by the AMF in the Registration Request. An attacker can cause a slice reference overflow by sending specially crafted input data.