VulnSocial

CVE-2026-55001Patch(microsoft / windows_10_1607)

LOWCVSS 7.8 · 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

Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-295

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

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_2016
  • windows_server_2019

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
windows_10_1607windows_10_1809windows_server_2016windows_server_2019windows_server_2022windows_server_2025

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-14: 1Patch / Workaround · 2026-07-14: 1Technical Details · 2026-07-14: 107-14
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Windows Forum@windowsforum
    Patch

    🪟 Patch your domain controllers: CVE-2026-55001 lets authenticated attackers climb the privilege ladder via bad certificate validation. “Important” is Microsoft-speak for “please don’t make this your Friday incident.” https://windowsforum.com/threads/cve-2026-55001-patch-active-directory-privilege-escalation.438215/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsServer #ActiveDirectory https://t.co/CLEvgLkD9i

    Post summary

    The post warns that CVE‑2026‑55001 enables privilege escalation in domain controllers due to bad certificate validation and urges administrators to apply the available patch, without mentioning active exploitation or providing an exploit.

    0000050
    1.2K followersView on X
CPE platform detail8 entries

8 of 8 entries

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

Explore more

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