CVE-2024-22529Network attack vector

Unauthenticated command execution via BSS buffer overflow

Published Jan 25, 2024 · Updated Jun 4, 2025

Command injection in TOTOLINK X2000R V2 firmware V2.0.0-B20230727.10434 allows remote attackers to execute commands via a crafted upload. The formUploadFile handler validates upload metadata, but a BSS overflow places attacker-controlled bytes into a string passed to system(). No authentication or user interaction is required; successful exploitation executes operating-system commands with the router service's privileges.

CVSS severity9.8
Critical
EPSS probability1.73%
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 X2000R V2 firmware V2.0.0-B20230727.10434 allows remote attackers to execute commands via a crafted upload. The formUploadFile handler validates upload metadata, but a BSS overflow places attacker-controlled bytes into a string passed to system(). No authentication or user interaction is required; successful exploitation executes operating-system commands with the router service's privileges.

The record

CVE
CVE-2024-22529
Published
Jan 25, 2024
Updated
Jun 4, 2025
Vendor
TOTOLINK
Product
X2000R
Classifications
CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 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=V2 V2.0.0-B20230727.10434

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · X2000Rversion=V2 V2.0.0-B20230727.10434

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.

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-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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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