CVE-2026-4974

HIGH

Tenda AC7 POST Request SetSysTimeCfg fromSetSysTime memory corruption

Title source: cna

Description

A flaw has been found in Tenda AC7 15.03.06.44. Affected by this issue is the function fromSetSysTime of the file /goform/SetSysTimeCfg of the component POST Request Handler. Executing a manipulation of the argument Time can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/?id.353861

[Signature, Permissions Required] https://vuldb.com/?ctiid.353861

[Third Party Advisory] https://vuldb.com/?submit.778207

[Exploit] https://lavender-bicycle-a5a.notion.site/Tenda-AC7-fromSetSysTime-32153a41781f801c95b0f8a53eaa9a1f?source=copy_link

[Product] https://www.tenda.com.cn/

Scores

CVSS v3 8.8

EPSS 0.0009

EPSS Percentile 25.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-121 CWE-787

Status published

Products (2)

Tenda/AC7 15.03.06.44

tenda/ac7_firmware 15.03.06.44

Published Mar 27, 2026

Tracked Since Mar 29, 2026