CVE-2025-8181Network attack vector

FTP privilege escalation via undisclosed configuration flaw

Published Jul 26, 2025 · Updated Jul 28, 2025

Incorrect privilege assignment in the FTP service of TOTOLINK N600R and X2000R 1.0.0.1 grants remote authenticated users excess privileges. The published record identifies vsftpd.conf as the affected locus but does not disclose which directive assigns excessive privileges or what input changes it. Exploitation requires high privileges and no user interaction; the disclosed consequence is an expanded FTP privilege boundary, while exact data or system actions remain unspecified.

CVSS severity8.6
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect privilege assignment in the FTP service of TOTOLINK N600R and X2000R 1.0.0.1 grants remote authenticated users excess privileges. The published record identifies vsftpd.conf as the affected locus but does not disclose which directive assigns excessive privileges or what input changes it. Exploitation requires high privileges and no user interaction; the disclosed consequence is an expanded FTP privilege boundary, while exact data or system actions remain unspecified.

The record

CVE
CVE-2025-8181
Published
Jul 26, 2025
Updated
Jul 28, 2025
Vendor
TOTOLINK
Product
N600R
Classifications
CWE-266, CWE-272
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 28, 2025Record 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=1.0.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

TOTOLINK · N600Rversion=1.0.0.1
TOTOLINK · X2000Rversion=1.0.0.1

Published CVSS scores

7.2VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.3VulDBAV:N/AC:L/Au:M/C:C/I:C/A:C
8.6VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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:X/V:X/RE:X/U:X

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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
CWE-272Least Privilege Violation

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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