CVE-2026-4497

HIGH 7.3

Totolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	wa300
Published	Mar 20, 2026
Last Updated	Mar 20, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / WA300

5.2cu.7112_B20190227

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 junqi (VulDB User)