CVE-2026-4974 Details
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.
A stack-based buffer overflow vulnerability has been identified in the Tenda AC7 router, specifically in the firmware version 15.03.06.44. The issue arises in the 'fromSetSysTime' function within the '/goform/SetSysTimeCfg' file, part of the POST Request Handler component. The vulnerability allows for remote exploitation by manipulating the 'Time' argument, leading to a buffer overflow condition where the user-controlled input exceeds the capacity of the designated array, potentially overwriting adjacent memory and causing unpredictable behavior.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 31, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://lavender-bicycle-a5a.notion.site/Tenda-AC7-fromSetSysTime-32153a41781f801c95b0f8a53eaa9a1f?source=copy_link | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.353861 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.353861 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.778207 | [email protected] | Third Party AdvisoryVDB Entry |
| https://www.tenda.com.cn/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| tenda ac7 firmware | 15.03.06.44 |
CPE
Remediation
| |
| tenda ac7 | 1.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 30, 2026 | Initial Analysis | [email protected] |
| Mar 27, 2026 | New CVE Received | [email protected] |