Open5GS NSSF conv.c ogs_sbi_parse_plmn_list denial of service_CVE-2026-8121

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 has been found in Open5GS up to 2.7.7. The impacted element is the function ogs_sbi_parse_plmn_list in the library /lib/sbi/conv.c of the component NSSF. The manipulation leads to denial of service. The attack is possible to be carried out remotely. The exploit has been disclosed to the 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-2026-8121

Source VulDB

Published May 8, 2026 at 00:30

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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    "lastseen": "",
    "description": "A vulnerability has been found in Open5GS up to 2.7.7. The impacted element is the function ogs_sbi_parse_plmn_list in the library /lib/sbi/conv.c of the component NSSF. The manipulation leads to denial of service. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "published": "2026-05-08T00:30:10.368Z",
    "modified": "2026-05-08T00:30:10.368Z",
    "type": "cve",
    "title": "Open5GS NSSF conv.c ogs_sbi_parse_plmn_list denial of service",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/361908\nhttps://vuldb.com/vuln/361908/cti\nhttps://vuldb.com/submit/808422\nhttps://vuldb.com/submit/808424\nhttps://github.com/open5gs/open5gs/issues/4433\nhttps://github.com/open5gs/open5gs/",
    "id": "CVE-2026-8121",
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    "cwe": [
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    "cvelist": null,
    "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",
        "vector": "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",
        "version": "4.0"
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        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "Open5GS",
    "version": "2.7.0",
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}