CVE-2026-1683

Free5GC SMF PFCP handler.go HandlePfcpSessionReportRequest denial of service

HIGH
7.5
CVSS Score
Published: January 30, 2026 at 02:02 PM UTC
Updated: June 17, 2026 at 10:16 AM UTC
2 products affected across 1 vendorFREE5GCSMF

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
PoC

Description

A vulnerability has been found in Free5GC SMF up to 4.1.0. Affected by this vulnerability is the function HandlePfcpSessionReportRequest of the file internal/pfcp/handler/handler.go of the component PFCP. The manipulation leads to denial of service. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. To fix this issue, it is recommended to deploy a patch.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

SignaturePermissions RequiredVDB Entry
https://vuldb.com/?ctiid.343476
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.343476
Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.739653
Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.739654
Product
Source: cverecord
https://github.com/free5gc/smf/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-404

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