Free5GC SMF establishPfcpSession null pointer dereference_CVE-2026-1973

6.9 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Description

A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.

Basic Information

ID CVE-2026-1973

Source VulDB

Published Feb 6, 2026 at 01:32

Affected Product

Vendor n/a

Product Free5GC

Version 4.0

Affected Versions n/a Free5GC 4.0
n/a Free5GC 4.1.0

CWE Classification

CWE-476 CWE-404

References

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    "lastseen": "",
    "description": "A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.",
    "published": "2026-02-06T01:32:08.923Z",
    "modified": "2026-02-06T01:32:08.923Z",
    "type": "cve",
    "title": "Free5GC SMF establishPfcpSession null pointer dereference",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.344495\nhttps://vuldb.com/?ctiid.344495\nhttps://vuldb.com/?submit.743236\nhttps://github.com/free5gc/free5gc/issues/815\nhttps://github.com/free5gc/free5gc/issues/815#issue-3832032062\nhttps://github.com/free5gc/smf/pull/189\nhttps://github.com/free5gc/free5gc/",
    "id": "CVE-2026-1973",
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    "cvelist": null,
    "sourceData": "n/a Free5GC 4.0\nn/a Free5GC 4.1.0",
    "sourceHref": "",
    "cvss": {
        "score": 6.9,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
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    "product": "Free5GC",
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