VulnSocial

CVE-2026-58629Disclosure(microsoft / windows_10_1607)

LOWCVSS 7.0 · HIGH

Exploit discussion active in current signal (2 latest mentions)

Immediate actions

  • Patch microsoft windows_10_1607 systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Use after free in Windows DirectX allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
2.5/ 10 priority

Sources & remediation

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

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
  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • PoC mentioned or linked in 1 signal
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • 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_2012windows_server_2016

2 versions affected across 13 products

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-15: 2PoC Mentioned / Linked · 2026-07-15: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 207-15
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • gengstah@_gengstah
    Disclosure

    CVE-2026-58629: the rollback for a failed D3DKMTCreateAllocation re-reads an allocation handle straight out of user memory and frees whatever it names, not the one it just made. Read it twice, free it twice. Unprivileged double-free in dxgkrnl https://gengstah.github.io/posts/2026/07/cve-2026-58629-dxgkrnl/

    Post summary

    A blog post discloses a double‑free vulnerability in dxgkrnl that can be exploited by unprivileged users, including technical details and a link to a likely PoC, but no active exploitation or patch has been reported.

    015049263.8K
    99 followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 DirectX isn’t just for games: CVE-2026-58629 lets low-privilege local users level up to near-total control. July’s patch is less “optional update,” more “stop handing out admin keys.” https://windowsforum.com/threads/cve-2026-58629-install-july-updates-to-fix-windows-directx-eop.438866/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #PrivilegeEscalation #PatchTuesday https://t.co/hTrXSjbMkx

    Post summary

    The tweet underscores a local privilege‑escalation vulnerability in DirectX and emphasizes the necessity of installing the July 2026 patch.

    0000039
    1.2K 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--x64
OSmicrosoftwindows_server_2019--x64
OSmicrosoftwindows_server_2022--x64
OSmicrosoftwindows_server_2025--x64

Explore more

Back to dashboardmicrosoft CVEswindows_10_1607 vulnerabilities