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High severity · published Mar 27, 2026
CVE-2026-4974
Tenda AC7 POST Request SetSysTimeCfg fromSetSysTime memory corruption
8.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC7 · Tenda
15.03.06.44 · source: vendor
AF
Ac7 Firmware · Tenda
15.03.06.44 · source: NVD
Affected product
AC
AC7
Tenda
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4974
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4974
Exploit
https://lavender-bicycle-a5a.notion.site/Tenda-AC7-fromSetSysTime-32153a41781f801c95b0f8a53eaa9a1f?source=copy_link
Permissions Required
https://vuldb.com/?ctiid.353861
Third Party Advisory
https://vuldb.com/?id.353861
Third Party Advisory
https://vuldb.com/?submit.778207
Product
https://www.tenda.com.cn/
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