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CVE-2021-1733

Sysinternals PsExec Elevation of Privilege Vulnerability

7.8 High

CVE-2021-1733 is a high vulnerability (CVSS 7.8) in Microsoft Psexec, published February 25, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. No source names a fixed version.

What does this mean?
Severity
7.8 HighCVSS 3.1, CVE List
Exploit chance
0.57%EPSS, 47th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Sysinternals PsExec Elevation of Privilege Vulnerability

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.57%Down 4.0 points since Apr 14, 2021
90%50%10%1%

Affected products

What each source reports

CVE List Score used7.8

Sysinternals PsExec Elevation of Privilege Vulnerability

Sysinternals PsExec Elevation of Privilege Vulnerability

Record
CVE-2021-1733
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Updated
2026-11-02
EUVDEUVD-2021-71977.8

Sysinternals PsExec Elevation of Privilege Vulnerability

Record
EUVD-2021-7197
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Updated
2026-11-03
GitHub AdvisoriesGHSA-w8qf-q3qr-cmvm7.8

Sysinternals PsExec Elevation of Privilege Vulnerability

Sysinternals PsExec Elevation of Privilege Vulnerability

Record
GHSA-w8qf-q3qr-cmvm
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-269
Updated
2026-11-02
NVD7.8

Sysinternals PsExec Elevation of Privilege Vulnerability

Record
CVE-2021-1733
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-269
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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