Open5GS SGWC s5c-handler.c sgwc_s5c_handle_modify_bearer_response denial of service_CVE-2026-1522

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 weakness has been identified in Open5GS up to 2.7.6. This vulnerability affects the function sgwc_s5c_handle_modify_bearer_response of the file src/sgwc/s5c-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This patch is called b19cf6a. Applying a patch is advised to resolve this issue. The issue report is flagged as already-fixed.

Basic Information

ID CVE-2026-1522

Source VulDB

Published Jan 28, 2026 at 16:32

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

CWE Classification

CWE-404

References

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    "lastseen": "",
    "description": "A weakness has been identified in Open5GS up to 2.7.6. This vulnerability affects the function sgwc_s5c_handle_modify_bearer_response of the file src/sgwc/s5c-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This patch is called b19cf6a. Applying a patch is advised to resolve this issue. The issue report is flagged as already-fixed.",
    "published": "2026-01-28T16:32:07.267Z",
    "modified": "2026-01-28T16:32:07.267Z",
    "type": "cve",
    "title": "Open5GS SGWC s5c-handler.c sgwc_s5c_handle_modify_bearer_response denial of service",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.343193\nhttps://vuldb.com/?ctiid.343193\nhttps://vuldb.com/?submit.738371\nhttps://github.com/open5gs/open5gs/issues/4266\nhttps://github.com/open5gs/open5gs/issues/4266#event-21968568116\nhttps://github.com/open5gs/open5gs/issues/4266#issue-3794991595\nhttps://github.com/open5gs/open5gs/commit/b19cf6a",
    "id": "CVE-2026-1522",
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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",
    "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": "Open5GS",
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