CVE-2026-4497: medium-severity vulnerability in Totolink WA300
Totolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 2.1%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
Totolink · WA300Related CVEs — Totolink WA300
In the same product, most dangerous first.
CVE-2026-2167MEDIUMTotolink WA300 cstecgi.cgi setAPNetwork os command injectionEPSS 2.6%CVE-2026-7721MEDIUMTotolink WA300 cstecgi.cgi NTPSyncWithHost command injectionEPSS 1.0%CVE-2026-7720MEDIUMTotolink WA300 POST Request cstecgi.cgi setLanguageCfg command injectionEPSS 1.0%CVE-2026-7718MEDIUMTotolink WA300 POST Request cstecgi.cgi setWebWlanIdx command injectionEPSS 1.0%CVE-2026-7719CRITICALTotolink WA300 POST Request cstecgi.cgi loginauth buffer overflowEPSS 0.6%CVE-2026-7717HIGHTotolink WA300 POST Request cstecgi.cgi UploadCustomModule buffer overflowEPSS 0.5%
References
https://github.com/hellonestor/killallbug/issues/1https://github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.ziphttps://vuldb.com/?ctiid.352046https://vuldb.com/?id.352046https://vuldb.com/?submit.773875https://www.totolink.net/