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HIGH

CVE-2026-0840

CVSS v3

8.8

HIGH

EPSS Score

4.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. Affected by this vulnerability is the function strcpy of the file /goform/formConfigNoticeConfig. The manipulation of the argument timestart leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Technical details

Published
2026-01-11
Last Modified
2026-01-13

Frequently asked questions

What is CVE-2026-0840?

A security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. Affected by this vulnerability is the function strcpy of the file /goform/formConfigNoticeConfig. The manipulation of the argument timestart leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Is CVE-2026-0840 actively exploited?

Active exploitation of CVE-2026-0840 has not been confirmed. Its EPSS score was 4.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-0840?

CVE-2026-0840 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-0840 affecting your environment?

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