Open5GS SMF gsm-build.c gsm_build_pdu_session_establishment_accept denial of service_CVE-2026-8266

5.3 / 10

MEDIUM

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

Description

A vulnerability was detected in Open5GS up to 2.7.7. This affects the function gsm_build_pdu_session_establishment_accept of the file /src/smf/gsm-build.c of the component SMF. The manipulation results in denial of service. The attack can be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Basic Information

ID CVE-2026-8266

Source VulDB

Published May 11, 2026 at 02:45

Affected Product

Vendor n/a

Product Open5GS

Version 2.7.0

Affected Versions n/a Open5GS 2.7.0
n/a Open5GS 2.7.1
n/a Open5GS 2.7.2
n/a Open5GS 2.7.3
n/a Open5GS 2.7.4
n/a Open5GS 2.7.5
n/a Open5GS 2.7.6
n/a Open5GS 2.7.7

CWE Classification

CWE-404

References

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    "description": "A vulnerability was detected in Open5GS up to 2.7.7. This affects the function gsm_build_pdu_session_establishment_accept of the file /src/smf/gsm-build.c of the component SMF. The manipulation results in denial of service. The attack can be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "published": "2026-05-11T02:45:08.137Z",
    "modified": "2026-05-11T02:45:08.137Z",
    "type": "cve",
    "title": "Open5GS SMF gsm-build.c gsm_build_pdu_session_establishment_accept denial of service",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/362563\nhttps://vuldb.com/vuln/362563/cti\nhttps://vuldb.com/submit/808483\nhttps://github.com/open5gs/open5gs/issues/4447\nhttps://github.com/open5gs/open5gs/",
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    "sourceData": "n/a Open5GS 2.7.0\nn/a Open5GS 2.7.1\nn/a Open5GS 2.7.2\nn/a Open5GS 2.7.3\nn/a Open5GS 2.7.4\nn/a Open5GS 2.7.5\nn/a Open5GS 2.7.6\nn/a Open5GS 2.7.7",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
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