CVE detail
CVE-2026-44317
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" (enabling traffic-routing feature negotiation) and whose medComponents entries supply an afAppId but NO AfRoutReq. The create path then calls provisioningOfTrafficRoutingInfo(smPolicy, appID, routeReq, ...) with routeReq == nil and dereferences routeReq.RouteToLocs (and other fields) without a nil check, causing runtime error: invalid memory address or nil pointer dereference. Gin recovery converts the panic into HTTP 500. This vulnerability is fixed in 4.2.2.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 4.5
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
- https://github.com/free5gc/pcf/pull/65github.com
No excerpt available.
Exploitgithub.comMay 27, 2026, 5:16 PM No excerpt available.
Exploitgithub.comMay 27, 2026, 5:16 PMNo excerpt available.
Exploitgithub.comMay 27, 2026, 5:16 PMNo excerpt available.
Exploitgithub.comMay 27, 2026, 5:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
1 repository references · best confidence 0.90 · max 0 stars
- free5gc/free5gcHigh confidencegithubNVD Exploit reference0 starsDiscovered Jul 15, 2026, 12:20 AM
NVD labels the source link as Exploit; this is not independent verification of the repository's code.
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