CVE-2021-26612Network attack vector

Command execution via startup-folder file copy

Published Nov 30, 2021 · Updated Aug 3, 2024

Improper input validation in TOBESOFT Nexacro Platform 17 17.1.2.500 allows remote attackers to execute commands through a crafted file. The open method creates an attacker-controlled file, and the copy method fails to validate its destination before placing it in the Windows startup folder. Exploitation requires user interaction and permits file creation and command execution on the affected Windows host, with no reported availability impact.

CVSS severity8.1
High
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in TOBESOFT Nexacro Platform 17 17.1.2.500 allows remote attackers to execute commands through a crafted file. The open method creates an attacker-controlled file, and the copy method fails to validate its destination before placing it in the Windows startup folder. Exploitation requires user interaction and permits file creation and command execution on the affected Windows host, with no reported availability impact.

The record

CVE
CVE-2021-26612
Published
Nov 30, 2021
Updated
Aug 3, 2024
Vendor
TOBESOFT
Product
nexacro platform 17
Classifications
CWE-20, T1547.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=17.1.2.500 <=17.1.2.500

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOBESOFT · nexacro platform 17version=17.1.2.500 <=17.1.2.500

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
8.1KrCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1547.001Registry Run Keys / Startup Folder

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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