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CVE-2026-7717 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: May 4, 2026

Totolink WA300 - Buffer Overflow

Published: May 4, 2026Updated: May 4, 2026Remote Exploitable

Overview

Totolink WA300 5.2cu.7112_B20190227 contains a buffer overflow caused by manipulation of the "File" argument in UploadCustomModule function of /cgi-bin/cstecgi.cgi POST Request Handler, letting remote attackers cause memory corruption, exploit requires crafted POST request.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

Remote attackers can cause memory corruption, potentially leading to remote code execution or system crash.

Mitigation

Update to the latest version of Totolink WA300 firmware.

References

https://www.totolink.net/
https://lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-UploadCustomModule-34553a41781f80a8a287e48a7fb04de9
https://vuldb.com/submit/807193
https://vuldb.com/vuln/360893
https://vuldb.com/vuln/360893/cti

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-7717
Severity: High
CVSS Score: 8.8
Type: buffer_overflow
Status: new

CWE

CWE-119

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H