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CVE-2026-21246General(microsoft / windows_10_1607)

LOWCVSS 7.8 · HIGH

Signal is active with 1 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

Heap-based buffer overflow in Microsoft Graphics Component 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-122CWE-787

Priority

LOW

Exploitation

NONE

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_1607
  • windows_10_1809
  • windows_10_21h2
  • windows_10_22h2

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-02-10); 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_server_2012windows_server_2016windows_server_2019

2 versions affected across 13 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-02-10: 1Mentions · 2026-04-30: 1Technical Details · 2026-02-10: 1Technical Details · 2026-04-30: 102-1004-30
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-02-101
General1
2026-04-301
Disclosure1
Full discourse2 posts
  • CVE@CVEnew
    General

    CVE-2026-21246 Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally. https://www.cve.org/CVERecord?id=CVE-2026-21246

    Post summary

    The post notes CVE‑2026‑21246 as a heap‑based buffer overflow in Microsoft Graphics Component that permits local privilege escalation, without mentioning a PoC, exploit tool, active exploitation, patch, or debunking.

    00010170
    56.5K followersView on X
  • Aakash Rahsi@rahsi_aaka
    Disclosure

    CVE-2026-21246 | Windows Graphics Component Elevation of Privilege Vulnerability https://www.aakashrahsi.online/post/cve-2026-21246 https://t.co/MgyaQjgmP5

    Post summary

    A new Windows Graphics Component elevation‑of‑privilege vulnerability (CVE-2026-21246) has been disclosed with reference links, but no proof of concept, exploit, or remediation details are provided.

    0000013
    1 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_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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