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TI-2021-01449 Aliases CVE-2021-1733GHSA-w8qf-q3qr-cmvm

Sysinternals PsExec Elevation of Privilege Vulnerability

Priority HIGH 69CWE-269Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

Sysinternals PsExec Elevation of Privilege Vulnerability

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00572 47th percentileScored 2026-11-07
Fix Fixed PsExec (Microsoft): publication

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftPsExecbefore publicationpublicationPatch availableCNA
  • PsExec VendorMicrosoft Affected before publication Fixed in publication Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:psexec:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:psexec:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

  • Fix · CNA PsExec (Microsoft) Fixed in publication

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1733
  2. 2026-10-03 Alias added: GHSA-w8qf-q3qr-cmvm

References

Patch 1

  • TI-2004-02600 Sysinternals PsTools before 2.05, including (1) PsExec before 1.54, (2) PsGetsid before… CVSS 2.0MEDIUM 4.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences