CVE-2026-58626Disclosure(microsoft / windows_10_21h2)

LOWCVSS 8.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_10_21h2 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Use after free in Windows Remote Desktop Services 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_21h2
  • windows_10_22h2
  • windows_11_24h2
  • windows_11_25h2

Threat summary

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

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 4 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-08-15)
  • 4 total mentions across 3 days

Affected systems

Vendors
Products
windows_10_21h2windows_10_22h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2022windows_server_2025

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-07-15: 1Mentions · 2026-08-14: 1Mentions · 2026-08-15: 2Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 1Technical Details · 2026-08-14: 1Technical Details · 2026-08-15: 207-1508-1408-15
Signal classification2 categories
Disclosure
375.0%
Patch
125.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-151
Patch1
2026-08-141
Disclosure1
2026-08-152
Disclosure2
Full discourse4 posts
  • ケイ | IT・セキュリティ系副業Webライター@Teeeda_worker
    Disclosure

    WindowsリモートデスクトップサービスにRCE脆弱性、CVE-2026-58626はCVSS 8.8 https://www.cybernote.click/2026/08/10/windows-remote-desktop-cve-2026-58626-rce/ #IT #Security #cybersecurity

    Post summary

    The post announces a new RCE vulnerability (CVE‑2026‑58626) in Windows Remote Desktop Services with a CVSS score of 8.8 but offers no evidence of exploits, patches, or false‑positive claims.

    0002098
    208 followersView on X
  • ケイ | IT・セキュリティ系副業Webライター@Teeeda_worker
    Disclosure

    WindowsリモートデスクトップサービスにRCE脆弱性、CVE-2026-58626はCVSS 8.8 https://www.cybernote.click/2026/08/10/windows-remote-desktop-cve-2026-58626-rce/ #IT #Security #cybersecurity

    Post summary

    The post announces a new RCE vulnerability (CVE‑2026‑58626) in Windows Remote Desktop with a CVSS score of 8.8.

    0000087
    213 followersView on X
  • ケイ | IT・セキュリティ系副業Webライター@Teeeda_worker
    Disclosure

    WindowsリモートデスクトップサービスにRCE脆弱性、CVE-2026-58626はCVSS 8.8 https://www.cybernote.click/2026/08/10/windows-remote-desktop-cve-2026-58626-rce/ #IT #Security #cybersecurity

    Post summary

    The announcement identifies CVE-2026-58626 as a remote code execution flaw in Windows Remote Desktop Service with a CVSS score of 8.8, but it does not mention PoCs, exploits, patches, or active exploitation.

    0000092
    213 followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 July’s Windows updates patch an RDS remote-code flaw that can turn network access into code execution. If RDP is exposed, “we’ll patch later” is basically an invitation. https://windowsforum.com/threads/cve-2026-58626-install-july-updates-to-fix-windows-rds-rce.438861/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #PatchTuesday #RemoteDesktopServices #Cve202658626 https://t.co/voZSyAhUeA

    Post summary

    The tweet announces that July Windows updates patch CVE-2026-58626, a Remote Desktop Services remote‑code execution flaw, and urges users to apply the fix.

    0000015
    1.2K followersView on X
CPE platform detail14 entries

14 of 14 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_21h2--arm64
OSmicrosoftwindows_10_21h2--x64
OSmicrosoftwindows_10_21h2--x86
OSmicrosoftwindows_10_22h2--arm64
OSmicrosoftwindows_10_22h2--x64
OSmicrosoftwindows_10_22h2--x86
OSmicrosoftwindows_11_24h2--arm64
OSmicrosoftwindows_11_24h2--x64
OSmicrosoftwindows_11_25h2--arm64
OSmicrosoftwindows_11_25h2--x64
OSmicrosoftwindows_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64
OSmicrosoftwindows_server_2022--x64
OSmicrosoftwindows_server_2025--x64

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