CVE-2026-4497

5.5 mediumEPSS 2.1%

Medium (5.5) in totolink wa300 firmware. EPSS 2.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.5 medium

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

CVSS 3.1

9.8 critical

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

EPSS: 2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)
CWEs: CWE-78, CWE-77
Published: 2026-03-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:wa300_firmware

References

https://github.com/hellonestor/killallbug/issues/1
https://github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.zip
https://vuldb.com/?ctiid.352046
https://vuldb.com/?id.352046
https://vuldb.com/?submit.773875

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