CVE-2026-56194Disclosure(microsoft / windows_10_1607)

LOWCVSS 8.8 · HIGH

Signal is active with 2 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

Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges over a network.

1.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-122CWE-190

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
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Disclosure: 1 classified signal
  • 2 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 timeline2 mentions / 1d
01122Mentions · 2026-07-15: 2Patch / Workaround · 2026-07-15: 107-15
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • VulDB 🛡@vuldb
    Disclosure

    We have just added an important vulnerability affecting Microsoft Windows (CVE-2026-56194) https://vuldb.com/vuln/379035

    Post summary

    A new Windows vulnerability, CVE-2026-56194, is announced on a vulnerability database with no additional technical or exploitation details provided.

    00000118
    2.3K followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 Windows NFS Server shipped with a network-accessible privilege escalator. CVE-2026-56194 hits clients and servers alike—patch now, before “authorized attacker” becomes “full admin.” https://windowsforum.com/threads/cve-2026-56194-patch-windows-nfs-server-privilege-flaw.438801/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #PatchTuesday #NfsServer #Cve202656194 https://t.co/FmqDB2k4jz

    Post summary

    The tweet highlights a critical Windows NFS Server privilege escalation flaw (CVE‑2026‑56194), warns of serious risk, and directs users to apply the vendor patch immediately.

    0000042
    1.2K followersView on X
CPE platform detail15 entries

15 of 15 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607--x64
OSmicrosoftwindows_10_1607--x86
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
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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