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I. Basic Information for CVE-2026-0834
Vulnerability Information
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Vulnerability Title
Logic Vulnerability on TP-Link Archer C20, Archer AX53 and TL-WR841N v13
Source: NVD (National Vulnerability Database)
Vulnerability Description
Logic vulnerability in TP-Link Archer C20 v5, 6.0, Archer AX53 v1.0 and TL-WR841N v13 (TDDP module) allows unauthenticated adjacent attackers to execute administrative commands including factory reset and device reboot without credentials. Attackers on the adjacent network can remotely trigger factory resets and reboots without credentials, causing configuration loss and interruption of device availability.This issue affects Archer C20 v6.0 < V6_251031, Archer C20 v5 <EU_V5_260317 or < US_V5_260419 Archer AX53 v1.0 < V1_251215 TL-WR841N v13 < 0.9.1 Build 20231120 Rel.62366
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用欺骗进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
TP-LINK Archer C20 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-LINK Archer C20是中国普联（TP-LINK）公司的一款路由器。 TP-LINK Archer C20 v6.0 V6_251031之前版本和TP-Link Archer AX53 v1.0 V1_251215之前版本存在安全漏洞，该漏洞源于TDDP模块存在逻辑漏洞，可能导致未经身份验证的相邻攻击者执行管理命令。
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
TP-Link Systems Inc.Archer C20 v6.0, Archer AX53 v1.0 0 ~ V6_251031 -
TP-Link Systems Inc.Archer C20 V5 0 ~ US_V5_260419 -
TP Link Systems Inc.TL-WR841N v13 0 ~ 0.9.1 Build 20231120 Rel.62366 -
II. Public POCs for CVE-2026-0834
#POC DescriptionSource LinkShenlong Link
1Proof of Concept (PoC) for the TP-Link Device Debug Protocol (TDDP) Authentication Bypass (CVE-2026-0834)https://github.com/mattgsys/CVE-2026-0834POC Details
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III. Intelligence Information for CVE-2026-0834
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IV. Related Vulnerabilities
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-290
V. Comments for CVE-2026-0834

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