PT-2026-26663 · Totolink · Totolink Wa300

Junqi · Published 2026-03-20 · Updated 2026-03-21 · CVE-2026-4497

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Totolink WA300 version 5.2cu.7112 B20190227

Description A flaw exists in the recvUpgradeNewFw function within the /cgi-bin/cstecgi.cgi file that allows for os command injection. Remote exploitation is possible. The details of the issue have been publicly disclosed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

CVE-2026-4497

Affected Products

Totolink Wa300

References · 8

• 🔥❌ https://github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.zip · Exploit, Deleted
• 🔥 https://github.com/hellonestor/killallbug/issues/1 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4497 · Security Note
• https://vuldb.com/?ctiid.352046 · Note
• https://vuldb.com/?submit.773875 · Note
• https://twitter.com/CVEnew/status/2035262170594730334 · Twitter Post
• https://totolink.net · Note
• https://vuldb.com/?id.352046 · Note