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TI-2026-73283 Aliases CVE-2026-102204GHSA-cc23-mrxf-w2c6

Link following in Windows Subsystem for Linux enables privilege gain

Priority LOW 36CWE-59Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Windows Subsystem for Linux (WSL2) from 5.0.0.0 before 3.0.1 contains improper link resolution before file access, also known as link following (CWE-59). An authorized local attacker with low privileges can gain higher privileges on the system.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Improper link resolution before file access ('link following') in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00399 34th percentileScored 2026-11-07
Fix Fixed Windows Subsystem for Linux (WSL2) (Microsoft): 3.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
MicrosoftWindows Subsystem for Linux (WSL2)5.0.0.0 to before 3.0.13.0.1Patch availableCNA
  • Windows Subsystem for Linux (WSL2) VendorMicrosoft Affected 5.0.0.0 to before 3.0.1 Fixed in 3.0.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:windows_subsystem_for_linux:*:*:*:*:*:*:*:*——Microsoft
  • cpe:2.3:a:microsoft:windows_subsystem_for_linux:*:*:*:*:*:*:*:* Versions — — ·Microsoft

Remediation

Update Windows Subsystem for Linux (WSL2) to version 3.0.1, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Windows Subsystem for Linux (WSL2) (Microsoft) Fixed in 3.0.1

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-102204
  2. 2026-10-13 Alias added: GHSA-cc23-mrxf-w2c6
  3. 2026-10-14 CISA SSVC decision points changed
  4. 2026-10-14 Priority changed: MEDIUM → LOW
  5. 2026-10-20 Title updated · CNA
  6. 2026-10-20 Fix available: Microsoft/Windows Subsystem for Linux (WSL2)@3.0.1 · CNA

References

Patch 1

  • TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
See all 18045 →

Sources

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