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CVE-2025-15356— Tenda AC20 PowerSaveSet sscanf buffer overflow

CVSS 8.8 · High EPSS 0.17% · P38
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I. Basic Information for CVE-2025-15356

Vulnerability Information
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Vulnerability Title
Tenda AC20 PowerSaveSet sscanf buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The impacted element is the function sscanf of the file /goform/PowerSaveSet. The manipulation of the argument powerSavingEn/time/powerSaveDelay/ledCloseType leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda AC20 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC20是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC20 16.03.08.12及之前版本存在安全漏洞，该漏洞源于对文件/goform/PowerSaveSet中参数powerSavingEn/time/powerSaveDelay/ledCloseType的错误操作，可能导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
TendaAC20 16.03.08.0 cpe:2.3:o:tenda:ac20_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-15356

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III. Intelligence Information for CVE-2025-15356

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Same Patch Batch · Tenda · 2025-12-30 · 15 CVEs total

CVE-2025-152559.8 CRITICALTenda W6-S R7websSsecurityHandler httpd stack-based overflow
CVE-2025-152158.8 HIGHTenda AC10U HTTP POST Request setPptpUserList formSetPPTPUserList buffer overflow
CVE-2025-152168.8 HIGHTenda AC23 SetIpMacBind fromSetIpMacBind stack-based overflow
CVE-2025-152178.8 HIGHTenda AC23 HTTP POST Request formSetPPTPUserList buffer overflow
CVE-2025-152188.8 HIGHTenda AC10U POST Request Parameter AdvSetLanip fromadvsetlanip buffer overflow
CVE-2025-152308.8 HIGHTenda M3 setVlanPolicyData formSetVlanPolicy heap-based overflow
CVE-2025-152318.8 HIGHTenda M3 setVlanInfo formSetRemoteVlanInfo stack-based overflow
CVE-2025-152328.8 HIGHTenda M3 setAdPushInfo formSetAdPushInfo stack-based overflow
CVE-2025-152338.8 HIGHTenda M3 setAdInfoDetail formSetAdInfoDetails heap-based overflow
CVE-2025-152348.8 HIGHTenda M3 setInternetLanInfo formSetRemoteInternetLanInfo heap-based overflow
CVE-2025-152528.8 HIGHTenda M3 setDhcpAP formSetRemoteDhcpForAp stack-based overflow
CVE-2025-152538.8 HIGHTenda M3 exeCommand stack-based overflow
CVE-2025-152546.3 MEDIUMTenda W6-S ATE Service ate TendaAte os command injection
CVE-2025-152295.3 MEDIUMTenda CH22 DhcpListClient fromDhcpListClient denial of service

IV. Related Vulnerabilities

Same product: AC20
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2025-15356

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