VulnSocial

CVE-2025-21212Disclosure(microsoft / windows_10_1607)

LOWCVSS 6.5 · MEDIUM

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

Internet Connection Sharing (ICS) Denial of Service Vulnerability

microsoft CVEsBack to dashboard
2.0/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

YES

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

  • Public PoC is present in monitored signal
  • 1 mentions across 1 observed day

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_22h2windows_11_23h2windows_11_24h2windows_server_2016windows_server_2019windows_server_2022

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-03-11: 1PoC Mentioned / Linked · 2026-03-11: 1Technical Details · 2026-03-11: 103-11
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • UNDERCODE TESTING@UndercodeUpdate
    Disclosure

    🚨 #CVE-2025-21212 Exposed: The 20-Year-Old #Windows EPM Vulnerability That Bypasses Print Spooler Hardening + Video https://undercodetesting.com/cve-2025-21212-exposed-the-20-year-old-windows-epm-vulnerability-that-bypasses-print-spooler-hardening-video/ Educational Purposes!

    Post summary

    The tweet announces CVE‑2025‑21212, a 20‑year‑old Windows EPM flaw that bypasses Print Spooler hardening, and includes a video link—offering a disclosure but no exploit code or patches.

    000007
    402 followersView on X
CPE platform detail14 entries

14 of 14 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_22h2---
OSmicrosoftwindows_11_23h2---
OSmicrosoftwindows_11_24h2---
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2022_23h2--x64
OSmicrosoftwindows_server_2025--x64

Explore more

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