CVE-2026-4497

High

Description

A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

SeverityHigh

CVSS7.3

Exploit probability—

ProductTotolink Wa300 Firmware

PublishedMar 20, 2026

First seenMar 20, 2026

Weakness typeCWE-78OS command injection CWE-77Command injection

How to fix

Patches

github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.zip

Affected products

Product	Affected versions	Fixed in
totolink wa300_firmware	5.2cu.7112_b20190227	—

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