What’s Vulnerable › Vulnerabilities

CVE-2021-1733: Sysinternals PsExec Elevation of Privilege Vulnerability

• Severity: medium (CVSS 4.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-25 · updated 2026-06-17
• Weakness: CWE-269

Description

Sysinternals PsExec Elevation of Privilege Vulnerability

Affected products

• Microsoft PsExec: all versions
• Microsoft PsExec: before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft PsExec publication. Check the vendor advisory for mitigations.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1733
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1733

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