PT-2026-26652 · Tenda · Tenda A18 Pro

Lilukun · Published 2026-03-20 · Updated 2026-03-22 · CVE-2026-4493

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda A18 Pro version 02.03.02.28

Description A flaw exists in the MAC Filtering Configuration Endpoint of the Tenda A18 Pro. Specifically, the function sub 423B50 within the file /goform/setMacFilterCfg is susceptible to a stack-based buffer overflow. This issue can be triggered by manipulating the deviceList argument, potentially allowing for remote exploitation. The vulnerability has been publicly disclosed.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider disabling the MAC Filtering feature until a patch is available.

Exploit

Fix

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-119

CWE-121

Related Identifiers

CVE-2026-4493

Affected Products

Tenda A18 Pro

References · 9

• 🔥 https://github.com/lilukun337/cve/issues/5 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4493 · Security Note
• https://tenda.com.cn · Note
• https://twitter.com/cyberbivash/status/2035083101961953335 · Twitter Post
• https://twitter.com/CVEnew/status/2035619785376157702 · Twitter Post
• https://vuldb.com/?ctiid.352019 · Note
• https://vuldb.com/?id.352019 · Note
• https://twitter.com/CveFindCom/status/2035064591680524570 · Twitter Post
• https://vuldb.com/?submit.773727 · Note