A buffer overflow vulnerability exists in the setParentalRules interface of TOTOLINK A950RG V4.1.2cu.5204_B20210112. The urlKeyword parameter is not properly validated, and the function concatenates multiple user-controlled fields into a fixed-size stack buffer without performing boundary checks. A remote attacker can exploit this flaw to cause denial of service or potentially achieve arbitrary code execution.
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Fixes

Solution

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Workaround

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History

Tue, 10 Feb 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Totolink a950rg Firmware
CPEs cpe:2.3:h:totolink:a950rg:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a950rg_firmware:4.1.2cu.5204_b20210112:*:*:*:*:*:*:*
Vendors & Products Totolink a950rg Firmware

Mon, 09 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 05 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 04 Feb 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Totolink
Totolink a950rg
Vendors & Products Totolink
Totolink a950rg

Tue, 03 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Description A buffer overflow vulnerability exists in the setParentalRules interface of TOTOLINK A950RG V4.1.2cu.5204_B20210112. The urlKeyword parameter is not properly validated, and the function concatenates multiple user-controlled fields into a fixed-size stack buffer without performing boundary checks. A remote attacker can exploit this flaw to cause denial of service or potentially achieve arbitrary code execution.
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-02-09T21:47:58.237Z

Reserved: 2025-12-08T00:00:00.000Z

Link: CVE-2025-67189

cve-icon Vulnrichment

Updated: 2026-02-05T14:35:51.083Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-03T18:16:16.393

Modified: 2026-02-10T14:15:24.380

Link: CVE-2025-67189

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-04T12:17:17Z

Weaknesses