KEV · Actively exploited
CVE-2026-68820
CVE-2026-68820 is actively exploited (CISA KEV catalog) : high severity (CVSS 7.0), 0 tracked apps concerned, none still exposed on their current version.
- Severity (CVSS)
- 7.0
- Exploitation
- Confirmed
- Tracked apps
- 0
- Still exposed
- 0
NVD scale
CISA KEV · EPSS predicts 0.3 %
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Attack vector : Local
No user interaction
Show raw CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.33%
predictive model; CISA confirms active exploitation
percentile 23.6%
CISA Known Exploited Vulnerability
- Added to KEV
- 2026-08-11
- Remediation deadline
- 2026-08-25
- Required action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- Ransomware
- Unknown (not documented by CISA)
OS versions that fix this CVE
This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.
- Windows Server 2025 Fixed in 10.0.26100.33296
- Windows Server 2022 Fixed in 10.0.20348.5499
- Windows Server 2019 Fixed in 10.0.17763.9121
- Windows Server 2016 Fixed in 10.0.14393.9418
- Windows 11 26H1 · 2026-H1 Fixed in 10.0.28000.2704
- Windows 11 25H2 · 2025-H2 Fixed in 10.0.26200.9168
- Windows 11 24H2 · 2024-H2 Fixed in 10.0.26100.9168
- Windows 11 23H2 · 2023-H2 Fixed in 10.0.22631.7517
- Windows 10 22H2 · 2022-H2 Fixed in 10.0.19045.7663
- Windows 10 21H2 · 2021-H2 Fixed in 10.0.19044.7663
- Windows 10 1809 · 2018-09 Fixed in 10.0.17763.9121
- Windows 10 1607 · 2016-07 Fixed in 10.0.14393.9418
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