OnlyFm252
Windows Network File System

CVE-2022-22039 — Windows Network File System Remote Code Execution Vulnerability

Critical CVSS 7.5 EPSS 0.0189 2022-07 archive

Executive Summary

None

Overview

7.5
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Jul 12 2022
Last Updated Jul 12 2022
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.0189 — 0.76866 percentile
NVD CVSS 7.5 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.5

EPSS Score

0.0189
probability of exploitation in the next 30 days
0.76866 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

7 affected products
Product KB Article Severity Impact Restart Required
Windows Server 2008 for 32-bit Systems Service Pack 2 5015866 (Monthly Rollup) 5015870 (Security Only) Critical Remote Code Execution 5014752 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21569 Yes 5015866 5015870 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5015866 (Monthly Rollup) 5015870 (Security Only) Critical Remote Code Execution 5014752 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21569 Yes 5015866 5015870 Windows Server 2008 for x64-based Systems Service Pack 2 5015866 (Monthly Rollup) 5015870 (Security Only) Critical Remote Code Execution 5014752 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21569 Yes 5015866 5015870 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5015866 (Monthly Rollup) 5015870 (Security Only) Critical Remote Code Execution 5014752 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21569 Yes 5015866 5015870 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5015861 (Monthly Rollup) 5015862 (Security Only) Critical Remote Code Execution 5014748 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.26022 Yes 5015861 5015862 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5015861 (Monthly Rollup) 5015862 (Security Only) Critical Remote Code Execution 5014748 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.26022 Yes 5015861 5015862 Windows Server 2012 5015863 (Monthly Rollup) 5015875 (Security Only) Critical Remote Code Execution 5014747 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.23771 Yes 5015863 5015875 Windows Server 2012 (Server Core installation) 5015863 (Monthly Rollup) 5015875 (Security Only) Critical Remote Code Execution 5014747 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.23771 Yes 5015863 5015875 Windows Server 2012 R2 5015874 (Monthly Rollup) 5015877 (Security Only) Critical Remote Code Execution 5014738 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20478 Yes 5015874 5015877 Windows Server 2012 R2 (Server Core installation) 5015874 (Monthly Rollup) 5015877 (Security Only) Critical Remote Code Execution 5014738 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20478 Yes 5015874 5015877 Windows Server 2016 5015808 (Security Update) Critical Remote Code Execution Yes
Windows Server 2016 (Server Core installation) 5015808 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 5015811 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 (Server Core installation) 5015811 (Security Update) Critical Remote Code Execution Yes
Windows Server 2022 5015827 (Security Update) Critical Remote Code Execution Yes
Windows Server 2022 (Server Core installation) 5015827 (Security Update) Critical Remote Code Execution Yes
Windows Server, version 20H2 (Server Core Installation) 5015807 (Security Update) Critical Remote Code Execution Yes

Patches

4 patches
Article Type Restart
5015808 Security Update Yes
5015811 Security Update Yes
5015827 Security Update Yes
5015807 Security Update Yes

Known Exploits

Acknowledgments

Yuki Chen

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