CVE-2025-15541

System file access via SFTP symlink following

Published Jan 29, 2026 · Updated Jan 29, 2026

Improper link resolution in TP-Link VX800v v1.0 before 800.0.11 allows remote authenticated users to access system files through SFTP. The SFTP service follows crafted symbolic links without confining each resolved target to the permitted file tree. High-privilege SFTP credentials and adjacent-network access are required; exploitation reads system files and permits limited modification without interrupting service.

CVSS severity6.9
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper link resolution in TP-Link VX800v v1.0 before 800.0.11 allows remote authenticated users to access system files through SFTP. The SFTP service follows crafted symbolic links without confining each resolved target to the permitted file tree. High-privilege SFTP credentials and adjacent-network access are required; exploitation reads system files and permits limited modification without interrupting service.

The record

CVE
CVE-2025-15541
Published
Jan 29, 2026
Updated
Jan 29, 2026
Vendor
TP-Link Systems Inc.
Product
VX800v
Classifications
CWE-59, T1005
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Jan 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

TP-Link Systems Inc. · VX800vversion=0 <800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)

Published CVSS scores

6.3NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
6.9TPLinkCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo