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7.4

Tenda A18 15.13.07.13: Remote Code Execution Possible

CVE-2026-2876
Summary

A security flaw in the Tenda A18 router's settings page allows an attacker to potentially take control of the device. This can happen if a hacker sends a specially crafted request to the router's settings page. To protect your device, update to the latest firmware as soon as possible.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software
VendorProductAffected versionsFix available
tenda a18_firmware 15.13.07.13 –
Original title
A vulnerability was determined in Tenda A18 15.13.07.13. This affects the function parse_macfilter_rule of the file /goform/setBlackRule. This manipulation of the argument deviceList causes stack-b...
Original description
A vulnerability was determined in Tenda A18 15.13.07.13. This affects the function parse_macfilter_rule of the file /goform/setBlackRule. This manipulation of the argument deviceList causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.
nvd CVSS2.0 9.0
nvd CVSS3.1 8.8
nvd CVSS4.0 7.4
Vulnerability type
CWE-119 Buffer Overflow
CWE-121 Stack-based Buffer Overflow
Published: 21 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026