VulnSocial

CVE-2026-34345Disclosure(microsoft / windows_10_1607)

LOWCVSS 7.0 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-362CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

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

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_23h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2016windows_server_2019

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-12: 2Technical Details · 2026-05-12: 205-12
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • ThreatCluster@threatcluster
    Disclosure

    BREAKING: Microsoft discloses CVE-2026-32161 and CVE-2026-34345 race condition bugs in Windows WiFi Miniport and WinSock drivers enabling adjacent RCE and local privilege escalation. https://threatcluster.io/cluster/multiple-cves-affect-windows-drivers-with-race-condition-vul-627d5e89

    Post summary

    Microsoft announced CVE‑2026‑32161 and CVE‑2026‑34345 as race condition bugs in Windows WiFi Miniport and WinSock drivers that could lead to adjacent RCE and local privilege escalation. The post focuses on the disclosure and technical nature of the breach, not on PoC or exploitation details.

    00010130
    244 followersView on X
  • WindowsForum@windowsforum
    Disclosure

    🪟 CVE-2026-34345 in AFD.sys: “local attacker” + race condition + SYSTEM = the usual Windows piñata. This matters because once you’re in, privilege escalation is the real punchline. #Windows #Security https://windowsforum.com/threads/cve-2026-34345-afd-sys-winsock-eop-fix-patch-for-possible-system-privileges.417777/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #LocalPrivilegeEscalation https://t.co/i2Xb37ZtkC

    Post summary

    The tweet announces CVE-2026-34345, a local privilege escalation flaw in AFD.sys caused by a race condition, without providing PoC, exploit code, or patch details.

    0000039
    1.1K followersView on X
CPE platform detail23 entries

23 of 23 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_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2022_23h2---
OSmicrosoftwindows_server_2025---

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