Improper Validation of Array Index Affecting github.com/free5gc/go-upf/internal/pfcp package, versions <1.2.8
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-GITHUBCOMFREE5GCGOUPFINTERNALPFCP-14535814
- published19 Dec 2025
- disclosed18 Dec 2025
- creditLinZiyu
Introduced: 18 Dec 2025
CVE-2025-65562 (opens in a new tab)How to fix?
Upgrade github.com/free5gc/go-upf/internal/pfcp to version 1.2.8 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Array Index via the DeleteSess and Sess functions in the session lookup/deletion process. An attacker can cause a crash of the service by sending a specially crafted request with a very large SEID value, leading to a negative index and Go runtime panic.