520w Firmware
CVE-2026-2066
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
A weakness has been identified in UTT 进取 520W 1.7.7-180627. This affects the function strcpy of the file /goform/formIpGroupConfig. Executing a manipulation of the argument groupName can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Remote code execution in UTT 520W firmware versions up to 1.7.7-180627 via stack buffer overflow in the /goform/formIpGroupConfig endpoint allows authenticated attackers to achieve complete system compromise. Public exploit code exists for this vulnerability, and the vendor has not provided a patch despite early disclosure notification. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | UTT 进取 520W firmware version 1.7.7-180627; attacker requires valid login credentials (PR:L); /goform/formIpGroupConfig endpoint must be accessible; vulnerable strcpy function processes groupName parameter without bounds checking Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A remote attacker could exploit this vulnerability to buffer overflow. |
| Remediation | Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all UTT 进取 520W devices in your environment and isolate affected units from critical networks if possible. …
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External POC / Exploit Code
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