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CVE-2026-0620— L2TP over IPSec Encryption Failure on ArcherAXE75

Quick assessment

Affected
TP-Link Systems Inc. AXE75
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TP-LINK Archer AXE75是中国普联（TP-LINK）公司的一款无线路由器。 TP-Link Archer AXE75 V1存在安全漏洞，该漏洞源于配置为L2TP/IPSec VPN服务器时，即使启用了IPSec，仍可能接受未受IPSec保护的L2TP连接，可能导致传输数据暴露和机密性受损。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-0620

Vulnerability Information
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Vulnerability Title
L2TP over IPSec Encryption Failure on ArcherAXE75
Source: CVE Program / CVE List V5
Vulnerability Description
When configured as L2TP/IPSec VPN server, Archer AXE75 V1 may accept connections using L2TP without IPSec protection, even when IPSec is enabled.  This allows VPN sessions without encryption, exposing data in transit and compromising confidentiality.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
保护机制失效
Source: CVE Program / CVE List V5
Vulnerability Title
TP-LINK Archer AXE75 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-LINK Archer AXE75是中国普联（TP-LINK）公司的一款无线路由器。 TP-Link Archer AXE75 V1存在安全漏洞，该漏洞源于配置为L2TP/IPSec VPN服务器时，即使启用了IPSec，仍可能接受未受IPSec保护的L2TP连接，可能导致传输数据暴露和机密性受损。
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
TP-Link Systems Inc. AXE75 0 ~ <1.5.1 Build 20251202 -

II. Public POCs for CVE-2026-0620

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III. Intelligence Information for CVE-2026-0620

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Same Patch Batch · TP-Link Systems Inc. · 2026-02-03 · 13 CVEs total

CVE-2025-62673 8.6 HIGH Heap-based Buffer Overflow Vulnerability in Archer AX53 and AX12
CVE-2026-22220 Improper Input Validation Leading to DoS on TP-Link Archer BE230
CVE-2026-22228 Improper Input Validation Leading to DoS on TP-Link Archer BE230
CVE-2025-58455 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53
CVE-2025-58077 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53
CVE-2025-59482 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53
CVE-2025-59487 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53
CVE-2025-62501 SSH Hostkey Misconfiguration Vulnerability in TP-Link Archer AX53
CVE-2025-62405 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53
CVE-2025-62404 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53
CVE-2025-61944 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53
CVE-2025-61983 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53

IV. Related Vulnerabilities

Same vendor: TP-Link Systems Inc.
Same weakness: CWE-693

V. Comments for CVE-2026-0620

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