NULL Pointer Dereference Affecting github.com/free5gc/smf/internal/sbi/processor package, versions <1.4.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMFREE5GCSMFINTERNALSBIPROCESSOR-15248419
- published8 Feb 2026
- disclosed6 Feb 2026
- creditZiyuLin
Introduced: 6 Feb 2026
CVE-2026-1973 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/smf/internal/sbi/processor to version 1.4.2 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference via the establishPfcpSession function. An attacker can cause a denial of service by sending specially crafted requests that trigger a null pointer dereference in the SMF component.