CVE-2026-0839 Details
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.
A buffer overflow vulnerability has been identified in the UTT 进取 520W router, specifically in the firmware version 1.7.7-180627. The issue arises in the '/goform/APSecurity' file, where the 'strcpy' function is used to copy the 'wepkey1' argument without proper size validation. This vulnerability can be exploited remotely, potentially leading to a denial-of-service condition.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jan 12, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/GUOTINGTING2297/cve/blob/main/1234/29.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.340439 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.340439 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.729028 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| utt 520w firmware | <= 1.7.7-180627 |
CPE
Remediation
| |
| utt 520w | 3.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 13, 2026 | Initial Analysis | [email protected] |
| Jan 11, 2026 | New CVE Received | [email protected] |