CVE-2025-15543

Read-only system file disclosure via USB symlinks

Published Jan 29, 2026 · Updated Jan 29, 2026

Improper link resolution in the USB HTTP path of TP-Link VX800v v1.0 allows physically proximate attackers to read system files. The web module resolves crafted symbolic links on USB storage to targets in the root filesystem and returns the target files over HTTP. Physical access to insert the device is required, and the demonstrated consequence is read-only disclosure without file modification or service interruption.

CVSS severity5.1
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper link resolution in the USB HTTP path of TP-Link VX800v v1.0 allows physically proximate attackers to read system files. The web module resolves crafted symbolic links on USB storage to targets in the root filesystem and returns the target files over HTTP. Physical access to insert the device is required, and the demonstrated consequence is read-only disclosure without file modification or service interruption.

The record

CVE
CVE-2025-15543
Published
Jan 29, 2026
Updated
Jan 29, 2026
Vendor
TP-Link Systems Inc.
Product
VX800v
Classifications
CWE-59, CAPEC-27, T1200
Attack vector
physical
Privileges
unauthenticated

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

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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 vectorphysical
Required privilegesunauthenticated

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

5.1TPLinkCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
4.6NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
CAPEC-27Leveraging Race Conditions via Symbolic Links
T1200Hardware Additions

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

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Your stack

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