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CVE-2026-50347Patch(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

Heap-based buffer overflow in Windows Data dll allows an unauthorized attacker to execute code locally.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-122CWE-190

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_10_21h2
  • windows_10_22h2

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-15); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
microsoft
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 / 2d
00111Mentions · 2026-07-15: 1Mentions · 2026-07-20: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 1Technical Details · 2026-07-20: 107-1507-20
Signal classification2 categories
Patch
150.0%
Disclosure
150.0%
Referenced assets1 URL
Classification over time
DateTotalLabels
2026-07-151
Patch1
2026-07-201
Disclosure1
Full discourse2 posts
  • DFIR Lab@DFIR_Lab
    Disclosure

    🚨 HIGH SEVERITY: CVE-2026-50347 (CVSS 7.8) Heap-based buffer overflow in Windows Data dll enables local code execution by unauthorized attackers. User interaction required. Patch immediately. #CVE #Vulnerability #PatchNow #ThreatIntel #DFIR https://t.co/r56Tph755h

    Post summary

    The tweet announces a new high‑severity heap‑based buffer overflow vulnerability (CVE‑2026‑50347) in Windows Data DLL that allows local code execution; it calls for immediate patching but provides no exploit code, patch details, or evidence of active exploitation.

    0000037
    88 followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 Windows Data.dll has a 7.8-rated RCE flaw, and exploitation starts with “just click this.” Install July’s updates—because malware loves users who postpone restarts. https://windowsforum.com/threads/cve-2026-50347-install-july-updates-to-fix-windows-data-dll-rce.438416/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #PatchManagement #Cve202650347 #DataDll https://t.co/a1C6h5tbob

    Post summary

    The post highlights a 7.8‑rated RCE flaw in Windows Data.dll and urges users to install July updates to mitigate the vulnerability. No PoC or exploit code is referenced, and active exploitation or false‑positive claims are absent.

    0000016
    1.2K followersView on X
CPE platform detail22 entries

22 of 22 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607--x64
OSmicrosoftwindows_10_1607--x86
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
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_2012---
OSmicrosoftwindows_server_2012r2--
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025---

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