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CVE-2025-32709Active Exploitation(microsoft / windows_10_1507)

MEDIUMCVSS 7.8 · HIGHCISA KEV

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

  • Prioritize remediation for microsoft windows_10_1507 systems immediately
  • Assume compromise if assets are exposed
  • Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
4.0/ 10 priority

Sources & remediation

Listed in the CISA Known Exploited Vulnerabilities catalog. Federal remediation due date: 2025-06-03. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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

Priority

MEDIUM

Exploitation

ACTIVE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • windows_10_1507
  • windows_10_1607
  • windows_10_1809
  • windows_10_21h2

Threat summary

  • Active exploitation appears in 2 classified signals
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Active exploitation reported across 2 signals
  • Peaked 1d ago at 1 mentions (2026-08-13); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
windows_10_1507windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_22h2windows_11_23h2windows_11_24h2windows_server_2008windows_server_2012

2 versions affected across 15 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-08-13: 1Mentions · 2026-08-15: 1Active Exploitation · 2026-08-13: 1Active Exploitation · 2026-08-15: 108-1308-15
Signal classification1 categories
Active Exploitation
2100.0%
Full discourse2 posts
  • Human Firewall@HumanFirewallHQ
    Active Exploitation

    This is not afd.sys's first time. It's the FOURTH exploited zero-day in that same driver since 2022: CVE-2024-38193 (also Lazarus) CVE-2025-21418 CVE-2025-32709 CVE-2026-68820 (Lazarus, FudModule) One component, nation-state favorite.

    Post summary

    The tweet confirms that four zero‑day CVEs in the afd.sys driver have been actively exploited, underscoring ongoing nation‑state activity.

    1000072
    2 followersView on X
  • Joshua Frank@PointFrankRange
    Active Exploitation

    Now pull up: CVE-2025-32709, CVE-2025-21418, CVE-2024-38193. Same driver. Lazarus was on that last one too. That’s four years of a nation-state mining one Windows component.

    Post summary

    The notice lists three CVEs tied to the same Windows driver and notes that the Lazarus group has been exploiting it for four years.

    0000034
    44 followersView on X
CPE platform detail19 entries

19 of 19 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1507---
OSmicrosoftwindows_10_1607---
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
OSmicrosoftwindows_10_21h2---
OSmicrosoftwindows_10_22h2---
OSmicrosoftwindows_11_22h2---
OSmicrosoftwindows_11_23h2---
OSmicrosoftwindows_11_24h2---
OSmicrosoftwindows_server_2008--x64
OSmicrosoftwindows_server_2008--x86
OSmicrosoftwindows_server_2008r2-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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