CVE-2021-32961Network attack vector

Code execution via unsafe getfile archive handling

Published Apr 1, 2022 · Updated Apr 16, 2025

Unrestricted upload in affected MDT Software AutoSave and A4SP releases allows remote attackers to execute malicious Windows binaries. The getfile function handles an attacker-supplied optional parameter specially, invokes unzip, and deposits an executable in a searched location. Network access without authentication or user interaction is sufficient, and successful exploitation permits attacker-controlled code execution.

CVSS severity7.5
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted upload in affected MDT Software AutoSave and A4SP releases allows remote attackers to execute malicious Windows binaries. The getfile function handles an attacker-supplied optional parameter specially, invokes unzip, and deposits an executable in a searched location. Network access without authentication or user interaction is sufficient, and successful exploitation permits attacker-controlled code execution.

The record

CVE
CVE-2021-32961
Published
Apr 1, 2022
Updated
Apr 16, 2025
Vendor
MDT Software
Product
AutoSave for System Platform
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.00
  2. Affected versionversion=unspecified <4.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MDT Software · AutoSave for System Platformversion=5.00; version=unspecified <4.01
MDT Software · AutoSaveversion=7.00 <7.04; version=unspecified <6.02.06

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5CISA ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

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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