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CVE-2026-4497

Totolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection

CVSS 6.9 MEDIUMEPSS 1.9%CWE-77CWE-78
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.9EPSS 1.9%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
20 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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 · WA300

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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/