CVE-2026-2191
High
Description
A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
SeverityHigh
CVSS7.2
Exploit probability—
ProductTenda Ac9 Firmware
PublishedFeb 8, 2026
First seenFeb 8, 2026
Weakness typeCWE-121CWE-121CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tenda ac9_firmware | 15.03.06.42_multi | — |
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