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Vulnerability record · CVE-2025-15541 · published 29 January 2026

CVE-2025-15541: Tp-link vx800v firmware link following vulnerability

Tp Link · Vx800v Firmware

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.

6.9 CVSS 4.0 Medium EPSS 0.27% · top 82.4% CWE-59 · Link following
6.9CVSS 4.0 base score
0.27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.tp-link.com/de/support/download/vx800v/#Firmware Product
https://www.tp-link.com/us/support/faq/4930/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.7CVE-2025-13399Tp-link vx800v firmware vulnerabilityA weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt…EPSS 0.17%6.3CVE-2025-15542Tp-link vx800v firmware vulnerabilityImproper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blo…EPSS 0.29%5.3CVE-2025-15548Tp-link vx800v firmware missing encryption vulnerabilitySome VX800v v1.0 web interface endpoints transmit sensitive information over unencrypted HTTP due to missing application layer encryption, allowing a…EPSS 0.08%5.1CVE-2025-15543Tp-link vx800v firmware link following vulnerabilityImproper link resolution in USB HTTP access path in VX800v v1.0 allows a crafted USB device to expose root filesystem contents, giving an attacker wi…EPSS 0.21%7.8CVE-2026-81963Windows Update Stack link-following privilege escalationWindows Update Stack resolves links improperly before accessing files, a link-following flaw (CWE-59) compounded by improper access control (CWE-284)…KEVEPSS 0.39%analysed7.8CVE-2015-5287ABRT abrt-hook-ccpp symlink privilege escalationThe abrt-hook-ccpp helper in Red Hat's Automatic Bug Reporting Tool (ABRT) before 2.7.1 follows symlinks on files with predictable names, letting a l…KEVEPSS 5.0%analysed7.8CVE-2026-41091Microsoft Defender link following allows local privilege elevationMicrosoft Defender's malware protection engine resolves links improperly before accessing files, a link-following flaw (CWE-59). A local attacker wit…KEVEPSS 0.44%analysed7.2CVE-2024-57728SimpleHelp zip slip path traversal allows arbitrary file write and code executionSimpleHelp remote support software v5.5.7 and earlier lets admin users upload a crafted zip file that writes files anywhere on the file system via zi…KEVEPSS 65%analysed

Source: NIST National Vulnerability Database (record CVE-2025-15541), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.