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CVE-2026-34329Patch(microsoft / windows_10_1607)

LOWCVSS 8.8 · 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 Message Queuing allows an unauthorized attacker to execute code over an adjacent network.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

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

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 (2026-05-12); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_23h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2012windows_server_2016

2 versions affected across 14 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-05-12: 1Mentions · 2026-05-15: 1Patch / Workaround · 2026-05-12: 1Technical Details · 2026-05-12: 1Technical Details · 2026-05-15: 105-1205-15
Signal classification2 categories
Patch
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-05-121
Patch1
2026-05-151
Disclosure1
Full discourse2 posts
  • Israel@f1tym1
    Disclosure

    CVE-2026-34329 | Microsoft Windows up to Server 2025 Message Queuing heap-based overflow (Nessus ID 314354 / WID-SEC-2026-1489) https://ift.tt/aBm8Jj1 A vulnerability was found in Microsoft Windows and classified as critical. This issue affects some unknown processing of the c…

    Post summary

    The CVE-2026-34329 vulnerability is a critical heap-based overflow in Windows Message Queuing; the text provides technical details but does not mention PoC, exploit tools, active exploitation, patches, or false-positive status.

    0000063
    974 followersView on X
  • WindowsForum@windowsforum
    Patch

    🚨 CVE-2026-34329 MSMQ RCE: because apparently Windows “plumbing” is always leaking. Unauth attacker on adjacent network = segmenting isn’t optional. Patch fast, then prune legacy. https://windowsforum.com/threads/cve-2026-34329-msmq-rce-important-patch-may-12-2026-and-lock-down-adjacent-risk.417747/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #PatchTuesday #WindowsRce #MsmqSecurity #Cve202634329 https://t.co/LC6aQiLfus

    Post summary

    The tweet announces a Windows MSMQ remote code execution vulnerability (CVE-2026-34329) and urges administrators to apply the patch immediately to mitigate risks from adjacent networks.

    0000036
    1.1K followersView on X
CPE platform detail25 entries

25 of 25 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_23h2--arm64
OSmicrosoftwindows_11_23h2--x64
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_2022_23h2---
OSmicrosoftwindows_server_2025---

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