CVE-2026-7717

high

Published 2026-05-04 · Modified 2026-05-04

CVSS v3

8.8

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

CVSS v2

9.0

VIR risk

8.8

Description

A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument File can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Predictions

Exploit likelihood

92%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

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
https://www.totolink.net/

CWEs

CWE-119 CWE-120

Verify integrity in audit chain (admin only). AS-IS.