Vulnerability · Published Jan 11, 2026 · Assigned by VulDB

CVE-2026-0840UTT 进取 520W formConfigNoticeConfig strcpy buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in 进取 520W from UTT. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 4.1% (higher than 91% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)4.1%top 9.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
UTT	进取 520W	1.7.7-180627

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-340440 | UTT 进取 520W formConfigNoticeConfig strcpy buffer overflow vdb-entry, technical-description
VDB-340440 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #729029 | UTT 进取 520W v3v1.7.7-180627 Buffer Overflow third-party-advisory
https://github.com/GUOTINGTING2297/cve/blob/main/1234/30.md exploit