CVE-2026-1683

MEDIUM
2026-01-30 [email protected]
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
PoC Detected
Feb 23, 2026 - 10:16 vuln.today
Public exploit code
CVE Published
Jan 30, 2026 - 14:16 nvd
MEDIUM 5.3

Tags

Golang Denial Of Service Free5gc

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.

Analysis

Remote attackers can trigger a denial of service condition in Free5GC SMF versions up to 4.1.0 through crafted PFCP session report requests to the HandlePfcpSessionReportRequest function. Public exploit code exists for this vulnerability, and no patch is currently available, leaving affected deployments vulnerable to service disruption attacks.

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Remediation

Within 30 days: Identify affected systems running Free5GC SMF and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +26
POC: +20

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CVE-2026-1683 vulnerability details – vuln.today
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