CVE-2026-58545Patch(microsoft / windows_10_1607)

LOWCVSS 5.5 · MEDIUM

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 access control in Windows Kernel allows an authorized attacker to bypass a security feature locally.

1.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-284

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_10_21h2
  • windows_10_22h2

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
Products
windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2012windows_server_2016windows_server_2019

2 versions affected across 12 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-15: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 107-15
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Windows Forum@windowsforum
    Patch

    🪟 Windows’ July patch fixes a kernel bypass spanning releases from Windows 10 to 11 26H1. If “supported” means “still exploitable,” maybe install the update before attackers do. https://windowsforum.com/threads/cve-2026-58545-install-july-updates-to-fix-windows-kernel-bypass.438852/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #KernelVulnerability #PatchTuesday #Cve202658545 https://t.co/2vllBMuXRT

    Post summary

    The tweet recommends installing the July Windows security update to fix a kernel bypass affecting Windows 10 and 11, with no evidence of a PoC, exploit, or active exploitation.

    0000041
    1.2K followersView on X
CPE platform detail13 entries

13 of 13 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607---
OSmicrosoftwindows_10_1809---
OSmicrosoftwindows_10_21h2---
OSmicrosoftwindows_10_22h2---
OSmicrosoftwindows_11_24h2---
OSmicrosoftwindows_11_25h2---
OSmicrosoftwindows_11_26h1---
OSmicrosoftwindows_server_2012---
OSmicrosoftwindows_server_2012r2--
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025---

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