CVE-2026-62818Patch(microsoft / windows_10_1607)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_10_1607 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a network.

1.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • windows_10_1607
  • windows_10_1809
  • windows_server_2012
  • windows_server_2016

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 3 signals
  • Technical details provided in 3 signals
  • Peaked 2d ago at 1 mentions (2026-08-11); latest day: 1
  • 3 total mentions across 3 days

Affected systems

Vendors
Products
windows_10_1607windows_10_1809windows_server_2012windows_server_2016windows_server_2019windows_server_2022windows_server_2025

2 versions affected across 7 products

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-08-11: 1Mentions · 2026-08-12: 1Mentions · 2026-08-27: 1Patch / Workaround · 2026-08-11: 1Patch / Workaround · 2026-08-12: 1Patch / Workaround · 2026-08-27: 1Technical Details · 2026-08-11: 1Technical Details · 2026-08-12: 1Technical Details · 2026-08-27: 108-1108-1208-27
Signal classification1 categories
Patch
3100.0%
Referenced assets2 URLs
Full discourse3 posts
  • Richard Hicks@richardhicks
    Patch

    A #security update is available for a critical remote code execution (RCE) vulnerability in #Microsoft Active Directory Certificate Services (AD CS). #identity #pki https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62818

    Post summary

    Microsoft has released a security update for CVE-2026-62818, a critical RCE vulnerability in AD CS. The update addresses the issue; no exploit code or active exploitation claims are provided.

    02022731
    5.8K followersView on X
  • National CERT/CC@CERT_UG
    Patch

    🔴 Patch Now | August 27, 2026 Bringing these CVEs to your attention: - Azure Active Directory (CVE-2026-50481, CVSS 9.9) - Windows AD Certificate Services (CVE-2026-62818, CVSS 8.8) - N-able N-central (CVE-2026-18577) #CyberSafeUG #CERTUGCC https://t.co/k8OQLM3Y0f

    Post summary

    The tweet announces three critical CVEs, gives their CVSS scores, and urges users to apply patches promptly.

    0004095
    1.5K followersView on X
  • Windows Forum@windowsforum
    Patch

    🔐 Windows AD CS has a remote-code-execution flaw. If your enterprise CA inventory is “somewhere in a spreadsheet,” today’s the day to find it—and install the August patches. https://windowsforum.com/security-alerts.84/cve-2026-62818-patch-windows-ad-cs-remote-code-execution.442639/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #ActiveDirectoryCertificateServices #EnterprisePki #WindowsServerSecurity https://t.co/wnpXoq2kiM

    Post summary

    The post alerts about a remote‑code‑execution flaw in Windows AD CS and advises installing the August patches to remediate the issue.

    0000043
    1.3K followersView on X
CPE platform detail10 entries

10 of 10 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607--x64
OSmicrosoftwindows_10_1607--x86
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
OSmicrosoftwindows_server_2012---
OSmicrosoftwindows_server_2012r2--
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025---

Explore more