CVE-2025-55591Public exploitNetwork attack vector

Unauthenticated command execution via devicemac injection

Published Aug 18, 2025 · Updated Aug 18, 2025

Command injection in TOTOLINK A3002R 4.0.0-B20230531.1404 allows remote attackers to execute arbitrary OS commands via devicemac. The formMapDel handler passes the devicemac value to system() without neutralizing shell metacharacters, as demonstrated by creation of /tmp/hacked. No authentication or user interaction is required, and successful requests execute commands on the affected router.

CVSS severity9.8
Critical
EPSS probability7.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in TOTOLINK A3002R 4.0.0-B20230531.1404 allows remote attackers to execute arbitrary OS commands via devicemac. The formMapDel handler passes the devicemac value to system() without neutralizing shell metacharacters, as demonstrated by creation of /tmp/hacked. No authentication or user interaction is required, and successful requests execute commands on the affected router.

The record

CVE
CVE-2025-55591
Published
Aug 18, 2025
Updated
Aug 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix Shell

Public exploit references

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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