CVE-2023-32032

Privilege escalation via unconstrained tar extraction paths

Published Jun 13, 2023 · Updated Jan 1, 2025

Improper input validation in Microsoft .NET 7.0 and Visual Studio 2022 allows local users to elevate privileges through crafted tar extraction. TarFile.ExtractToDirectory fails to confine an archive entry path to the caller-supplied destination, allowing writes outside that directory. Exploitation requires low privileges and a privileged application that extracts an attacker-controlled tar archive; resulting file changes can compromise confidentiality, integrity, and availability.

CVSS severity6.5
Medium
EPSS probability0.60%
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 Microsoft .NET 7.0 and Visual Studio 2022 allows local users to elevate privileges through crafted tar extraction. TarFile.ExtractToDirectory fails to confine an archive entry path to the caller-supplied destination, allowing writes outside that directory. Exploitation requires low privileges and a privileged application that extracts an attacker-controlled tar archive; resulting file changes can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2023-32032
Published
Jun 13, 2023
Updated
Jan 1, 2025
Vendor
Microsoft
Product
PowerShell 7.3
Classifications
CWE-20, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 1, 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=7.3.0 <7.3.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · PowerShell 7.3version=7.3.0 <7.3.5
Microsoft · Microsoft Visual Studio 2022 version 17.6version=17.6.0 <17.6.3
Microsoft · Microsoft Visual Studio 2022 version 17.4version=17.4.0 <17.4.8
Microsoft · Microsoft Visual Studio 2022 version 17.0version=17.0.0 <17.0.22
Microsoft · Microsoft Visual Studio 2022 version 17.2version=17.2.0 <17.2.16
Microsoft · .NET 7.0version=7.0.0 <7.0.7

Published CVSS scores

6.5Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1068Exploitation for Privilege Escalation

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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