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CVE-2026-5548— Tenda AC10 httpd fromSysToolChangePwd stack-based overflow

Quick assessment

Affected
Tenda AC10
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tenda AC10是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC10 16.03.10.10_multi_TDE01版本存在安全漏洞，该漏洞源于对文件/bin/httpd中fromSysToolChangePwd函数参数sys.userpass的错误操作，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.84% · P56
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I. Basic Information for CVE-2026-5548

Vulnerability Information
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Vulnerability Title
Tenda AC10 httpd fromSysToolChangePwd stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Tenda AC10 16.03.10.10_multi_TDE01. Affected by this vulnerability is the function fromSysToolChangePwd of the file /bin/httpd. Performing a manipulation of the argument sys.userpass results in stack-based buffer overflow. The attack can be initiated remotely.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda AC10 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC10是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC10 16.03.10.10_multi_TDE01版本存在安全漏洞，该漏洞源于对文件/bin/httpd中fromSysToolChangePwd函数参数sys.userpass的错误操作，可能导致栈缓冲区溢出。
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

Vendor Product Affected Versions CPE Subscribe
Tenda AC10 16.03.10.10_multi_TDE01 cpe:2.3:o:tenda:ac10_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-5548

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 14348 chars
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-5548

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Vendor Advisories for CVE-2026-5548 (2)

Proof of Concept for CVE-2026-5548 (1)

Same Patch Batch · Tenda · 2026-04-05 · 7 CVEs total

CVE-2026-5550 8.8 HIGH Tenda AC10 httpd fromSysToolChangePwd stack-based overflow
CVE-2026-5567 8.8 HIGH Tenda M3 Destination setAdvPolicyData buffer overflow
CVE-2026-5604 8.8 HIGH Tenda CH22 Parameter CertLocalPrecreate formCertLocalPrecreate stack-based overflow
CVE-2026-5605 8.8 HIGH Tenda CH22 WrlExtraSet formWrlExtraSet stack-based overflow
CVE-2026-5547 6.3 MEDIUM Tenda AC10 httpd formAddMacfilterRule os command injection
CVE-2026-5549 5.3 MEDIUM Tenda AC10 RSA 2048-bit Private Key privkeySrv.pem hard-coded key

IV. Related Vulnerabilities

Same product: AC10
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-5548

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