CVE-2025-52905Network attack vector

Unauthenticated service interruption via diagnostic option injection

Published Sep 23, 2025 · Updated Sep 23, 2025

Argument injection in TOTOLINK X6000R 9.4.0cu.1360_B20241207 and earlier allows remote attackers to interrupt service via network requests. The setDiagnosisCfg function passes user-controlled diagnostic data into a system command after sanitization that leaves hyphens unfiltered, enabling injected command-line options. No authentication is required; oversized packet or resource-intensive options can exhaust the router or direct a packet flood at another host.

CVSS severity7.0
High
EPSS probability8.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Argument injection in TOTOLINK X6000R 9.4.0cu.1360_B20241207 and earlier allows remote attackers to interrupt service via network requests. The setDiagnosisCfg function passes user-controlled diagnostic data into a system command after sanitization that leaves hyphens unfiltered, enabling injected command-line options. No authentication is required; oversized packet or resource-intensive options can exhaust the router or direct a packet flood at another host.

The record

CVE
CVE-2025-52905
Published
Sep 23, 2025
Updated
Sep 23, 2025
Vendor
TOTOLINK
Product
X6000R
Classifications
CWE-20, CAPEC-125, T1498, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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=0 <=V9.4.0cu.1360_B20241207

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · X6000Rversion=0 <=V9.4.0cu.1360_B20241207

Published CVSS scores

7.0Palo Alto NetworksCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CAPEC-125Flooding
T1498Network Denial of Service
T1499Endpoint Denial of Service

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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