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Vulnerability record · CVE-2025-5798 · published 6 June 2025

CVE-2025-5798: Tenda ac8 firmware memory buffer overflow vulnerability

Tenda · Ac8 Firmware

A vulnerability was found in Tenda AC8 16.03.34.09. It has been classified as critical. Affected is the function fromSetSysTime of the file /goform/SetSysTimeCfg. The manipulation of the argument timeType leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

7.4 CVSS 4.0 High EPSS 1.2% · top 32.0% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was found in Tenda AC8 16.03.34.09. It has been classified as critical. Affected is the function fromSetSysTime of the file /goform/SetSysTimeCfg. The manipulation of the argument timeType leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lavender-bicycle-a5a.notion.site/Tenda-AC8-fromSetSysTime-20a53a41781f807b9489fff42f262e11?source=copy_link ExploitThird Party Advisory
https://vuldb.com/?ctiid.311352 Permissions Required
https://vuldb.com/?id.311352 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.591266 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product
https://lavender-bicycle-a5a.notion.site/Tenda-AC8-fromSetSysTime-20a53a41781f807b9489fff42f262e11 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-29100Tenda ac8 firmware stack-based buffer overflow vulnerabilityTenda AC8 V16.03.34.06 is vulnerable to Buffer Overflow in the fromSetRouteStatic function via the parameter list.EPSS 0.62%9.8CVE-2025-25664Tenda ac8 firmware out-of-bounds write vulnerabilityTenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_49E098 function.EPSS 0.55%9.8CVE-2025-25667Tenda ac8 firmware classic buffer overflow vulnerabilityTenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the urls parameter in the function get_parentControl_list_Info.EPSS 0.57%9.8CVE-2025-25663Tenda ac8 firmware out-of-bounds write vulnerabilityA vulnerability was found in Tenda AC8V4 V16.03.34.06. Affected is the function SUB_0046AC38 of the file /goform/WifiExtraSet. The manipulation of th…EPSS 0.55%9.8CVE-2025-25668Tenda ac8 firmware classic buffer overflow vulnerabilityTenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_47D878 function.EPSS 0.55%9.8CVE-2024-57703Tenda ac8 firmware out-of-bounds write vulnerabilityTenda AC8v4 V16.03.34.06 has a stack overflow vulnerability. Affected by this vulnerability is the function setSchedWifi of the file /goform/openSche…EPSS 0.56%9.8CVE-2024-46652Tenda ac8 firmware out-of-bounds write vulnerabilityTenda AC8v4 V16.03.34.06 has a stack overflow vulnerability in the fromAdvSetMacMtuWan function.EPSS 0.57%9.8CVE-2023-48194Tenda ac8 firmware out-of-bounds write vulnerabilityVulnerability in Tenda AC8v4 .V16.03.34.09 due to sscanf and the last digit of s8 being overwritten with \x0. After executing set_client_qos, control…EPSS 0.65%

Source: NIST National Vulnerability Database (record CVE-2025-5798), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.