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CVE-2026-69276Disclosure(microsoft / windows_10_1607)

LOWCVSS 9.8 · CRITICAL

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

Integer underflow (wrap or wraparound) in Microsoft UxTheme Library (uxtheme.dll) allows an unauthorized attacker to execute code over a network.

microsoft CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-122CWE-191

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

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

What's happening

  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-09-08); 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 13 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-09-08: 1Mentions · 2026-10-08: 109-0810-08
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 CRITICAL: CVE-2026-69276 (CVSS 9.8) Integer underflow in Microsoft UxTheme Library (uxtheme[.]dll) enables remote code execution with no authentication required. Patch immediately. #CVE #PatchNow #ThreatIntel https://t.co/si2h26qhHl

    Post summary

    The post discloses CVE-2026-69276, an unauthenticated remote code execution vulnerability in Microsoft UxTheme Library with CVSS 9.8, and issues an explicit call to patch immediately without referencing a PoC, exploit tool, or active exploitation.

    0000037
    147 followersView on X
  • VulDB 🛡@vuldb
    Disclosure

    A severe vulnerability was disclosed for Microsoft Windows (CVE-2026-69276) https://vuldb.com/vuln/400088

    Post summary

    A severe Windows vulnerability, CVE-2026-69276, has been disclosed with a reference link, but no additional technical details, exploits, or fixes are mentioned.

    00000102
    2.3K followersView on X
CPE platform detail24 entries

24 of 24 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_2025---

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