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Fencer Vulns
medium 4.3

CVE-2026-32202 kev in the critical feed json

Windows Shell Spoofing Vulnerability

published 2026-04-14 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-22589

cvss
4.3
version 3.1, CNA
cisa kev
Exploited
added 2026-04-28
epss
70.9%
EPSS 70.9% chance of exploitation in 30 days, percentile 99.4%
public exploits
1
Exploit-DB

Summary

Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

Patch / fix

cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  • Microsoft Windows 10 Version 1607 10.0.14393.9339
  • Microsoft Windows 10 Version 1809 10.0.17763.9020
  • Microsoft Windows 10 Version 21H2 10.0.19044.7548
  • Microsoft Windows 10 Version 22H2 10.0.19045.7548
  • Microsoft Windows 11 version 23H2 10.0.22631.7376
  • Microsoft Windows 11 Version 24H2 10.0.26100.8875
  • Microsoft Windows 11 Version 25H2 10.0.26200.8875
  • Microsoft Windows 11 version 26H1 10.0.28000.2525
  • Microsoft Windows Server 2012 6.2.9200.26226
  • Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.26226
  • Microsoft Windows Server 2012 R2 6.3.9600.23291
  • Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.23291
  • Microsoft Windows Server 2016 10.0.14393.9339
  • Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.9339
  • Microsoft Windows Server 2019 10.0.17763.9020
  • Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.9020
  • Microsoft Windows Server 2022 10.0.20348.5386
  • Microsoft Windows Server 2025 10.0.26100.33158
  • Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.33158
  • dotnet8-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 8.0.26-r0
  • dotnet9-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 9.0.15-r0
  • dotnet10-runtime Alpine 3.24, Alpine 3.23 10.0.6-r0

alpine advisories ALPINE-CVE-2026-32202

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Timeline

  1. Published
  2. CISA SSVC: exploitation active
  3. Added to CISA KEV
  4. CISA patch deadline
  5. First public exploit (EDB-52601)

Known exploited

Added
6 mo ago
Patch by
2026-05-12 (5 mo ago)
Ransomware
Not known
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor, product
Microsoft, Windows
CISA name
Microsoft Windows Protection Mechanism Failure Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
partial
Assessed
6 mo ago

Exploit prediction

70.90% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-52601 Microsoft - NTLMv2 Hash Capture remote, 2026-05-29

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected products

  • Microsoft Windows 10 Version 1607
  • Microsoft Windows 10 Version 1809
  • Microsoft Windows 10 Version 21H2
  • Microsoft Windows 10 Version 22H2
  • Microsoft Windows 11 version 23H2
  • Microsoft Windows 11 Version 24H2
  • Microsoft Windows 11 Version 25H2
  • Microsoft Windows 11 version 26H1
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 (Server Core installation)
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2012 R2 (Server Core installation)
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2016 (Server Core installation)
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2019 (Server Core installation)
  • Microsoft Windows Server 2022
  • Microsoft Windows Server 2025
  • Microsoft Windows Server 2025 (Server Core installation)

Classification

Weakness
  • CWE-693 Protection Mechanism Failure

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.