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CVE-2025-15541— Access to System Files via SFTP on TP-Link VX800v

Quick assessment

Affected
TP-Link Systems Inc. VX800v v1.0
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 VX800v是中国普联（TP-Link）公司的一款VoIP网关。 TP-Link VX800v 1.0版本存在安全漏洞，该漏洞源于SFTP服务链接解析不当，可能导致经过身份验证的相邻攻击者使用特制符号链接访问系统文件。

AI Predicted 7.8 Difficulty: Hard EPSS 0.27% · P19
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I. Basic Information for CVE-2025-15541

Vulnerability Information
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Vulnerability Title
Access to System Files via SFTP on TP-Link VX800v
Source: CVE Program / CVE List V5
Vulnerability Description
Improper link resolution in the VX800v v1.0 SFTP service allows authenticated adjacent attackers to use crafted symbolic links to access system files, resulting in high confidentiality impact and limited integrity risk.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
TP-Link VX800v 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link VX800v是中国普联（TP-Link）公司的一款VoIP网关。 TP-Link VX800v 1.0版本存在安全漏洞，该漏洞源于SFTP服务链接解析不当，可能导致经过身份验证的相邻攻击者使用特制符号链接访问系统文件。
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. VX800v v1.0 0 ~ 800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702) -

II. Public POCs for CVE-2025-15541

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III. Intelligence Information for CVE-2025-15541

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Vendor Pages for CVE-2025-15541 (1)

Same Patch Batch · TP-Link Systems Inc. · 2026-01-29 · 7 CVEs total

CVE-2026-1457 Authenticated RCE Vulnerability Due to Buffer Overflow on TP-Link VIGI C385
CVE-2025-15548 Missing Application-Layer Encryption in Web Interface Endpoints on TP-Link VX800v
CVE-2025-15543 Read-Only Root Access via USB Storage Device in TP-Link VX800v
CVE-2025-15542 Denial of Service (DoS) of VoIP Communication on TP-Link VX800v
CVE-2025-13399 Insecure Encryption in Communication with the Web Interface on TP-Link VX800v
CVE-2025-15545 Insufficient Backup File Upload Input Validation on TP-Link Archer RE605X

IV. Related Vulnerabilities

Same product: VX800v v1.0
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-59