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Vulnerability record · CVE-2026-0839 · published 11 January 2026

CVE-2026-0839: Utt 520w firmware memory buffer overflow vulnerability

UUtt · 520w Firmware

A weakness has been identified in UTT 进取 520W 1.7.7-180627. Affected is the function strcpy of the file /goform/APSecurity. Executing a manipulation of the argument wepkey1 can lead to buffer overflow. The attack may be performed from remote. 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.

7.4 CVSS 4.0 High EPSS 1.1% · top 36.4% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A weakness has been identified in UTT 进取 520W 1.7.7-180627. Affected is the function strcpy of the file /goform/APSecurity. Executing a manipulation of the argument wepkey1 can lead to buffer overflow. The attack may be performed from remote. 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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/GUOTINGTING2297/cve/blob/main/1234/29.md ExploitThird Party Advisory
https://vuldb.com/?ctiid.340439 Permissions RequiredVDB Entry
https://vuldb.com/?id.340439 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.729028 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-31059Utt 520w firmware command injection vulnerabilityA remote command execution (RCE) vulnerability in the /goform/formDia component of UTT Aggressive HiPER 520W v3v1.7.7-180627 allows attackers to exec…EPSS 1.1%7.4CVE-2026-2071Utt 520w firmware memory buffer overflow vulnerabilityA vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file /goform/formP2PLimitConfig. Performing…EPSS 0.69%7.4CVE-2026-2070Utt 520w firmware memory buffer overflow vulnerabilityA vulnerability has been found in UTT 进取 520W 1.7.7-180627. The affected element is the function strcpy of the file /goform/formPolicyRouteConf. Such…EPSS 0.69%7.4CVE-2026-2068Utt 520w firmware memory buffer overflow vulnerabilityA vulnerability was detected in UTT 进取 520W 1.7.7-180627. This issue affects the function strcpy of the file /goform/formSyslogConf. The manipulation…EPSS 0.71%7.4CVE-2026-2066Utt 520w firmware memory buffer overflow vulnerabilityA 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 manip…EPSS 0.69%7.4CVE-2026-2067Utt 520w firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. This vulnerability affects the function strcpy of the file /goform/formTimeGr…EPSS 0.89%7.4CVE-2026-1140Utt 520w firmware memory buffer overflow vulnerabilityA vulnerability was found in UTT 进取 520W 1.7.7-180627. This issue affects the function strcpy of the file /goform/ConfigExceptAli. The manipulation r…EPSS 0.76%7.4CVE-2026-1138Utt 520w firmware memory buffer overflow vulnerabilityA flaw has been found in UTT 进取 520W 1.7.7-180627. This affects the function strcpy of the file /goform/ConfigExceptQQ. Executing a manipulation can …EPSS 0.98%

Source: NIST National Vulnerability Database (record CVE-2026-0839), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.