CVE-2026-50416PoC(microsoft / windows_11_24h2)

MEDIUMCVSS 3.3 · LOW

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Patch microsoft windows_11_24h2 systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.

microsoft CVEs Back to dashboard

4.5/ 10 priority

Sources & remediation

Patch / fix

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50416

Weakness type (CWE)

CWE-200

Priority

MEDIUM

Exploitation

NONE

PoC

YES

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_11_24h2
windows_11_25h2
windows_11_26h1
windows_server_2025

Threat summary

Public PoC and exploit tooling are both present
Patch or workaround signal is available
5 mentions across 3 observed days
Momentum state: stable

What's happening

Exploit tool or code specified in 3 signals
PoC mentioned or linked in 3 signals
Patch or workaround mentioned in 1 signal
Technical details provided in 3 signals
Disclosure: 1 classified signal
Peaked 1d ago at 3 mentions (2026-07-17); latest day: 1
5 total mentions across 3 days

Affected systems

Vendors

microsoft

Products

windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2025

Deep dive

Activity timeline5 mentions / 3d

Signal classification3 categories

PoC

360.0%

Patch

120.0%

Disclosure

120.0%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-07-15	1	Patch1
2026-07-17	3	Disclosure1PoC2
2026-07-29	1	PoC1

Full discourse5 posts

karollol@karollooool92d
PoC
Wrote up CVE-2026-50416. win32k maps the desktop heap into every process. Offset 0x100 hands out a raw kernel session pool pointer. Readable from Low IL, AppContainer, even a zero capability LPAC. https://github.com/karollooool/CVE-2026-50416-writeup-and-poc
Post summary
A detailed write‑up of CVE-2026-50416 is provided, including technical exploit details and a GitHub repository linking to the PoC code, but no active exploitation or patch information is mentioned.
350224112237.3K
138 followersView on X
Cyber Advising@cyber_advising91d
PoC
CVE-2026-50416: Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally Windows 11 KASLR bypass PoC https://github.com/karollooool/CVE-2026-50416-writeup-and-poc https://t.co/tq6HK6DtpV
Post summary
The tweet announces a Proof of Concept for CVE‑2026‑50416, providing a GitHub repository with the KASLR bypass code, but it presents no evidence of active exploitation, patches, or a false‑positive claim.
112058354.0K
13.6K followersView on X
karollol@karollooool79d
PoC
@april_ivyyy Here’s one way to do it https://github.com/karollooool/CVE-2026-50416-writeup-and-poc
Post summary
The tweet shares a GitHub link to a writeup and PoC for CVE‑2026‑50416, confirming that proof‑of‑concept code is available but providing no evidence of active exploitation, patches, or technical details.
0101311774
142 followersView on X
karollol@karollooool92d
Disclosure
Happy to share that one of my Microsoft findings has been published as CVE-2026-50416. It disclosed a Win32k kernel pointer from the desktop heap, bypassing KASLR even from restricted contexts like AppContainer/LPAC. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50416 Full technical write-up coming soon.
Post summary
The user announces the publication of CVE-2026-50416, gives a brief technical description and links to the Microsoft advisory, but provides no PoC, exploit code, or patch information.
00141633
119 followersView on X
Windows Forum@windowsforum94d
Patch
🪟 Win32k is leaking information, but only after an attacker already has local access. Still, install KB5101650—Windows security is less “set and forget” and more “patch before it becomes your Tuesday.” https://windowsforum.com/threads/cve-2026-50416-install-kb5101650-to-fix-windows-11-win32k-leak.438444/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #Win32KVulnerability #PatchTuesday https://t.co/yuwdtB4hgG
Post summary
The post urges users to apply KB5101650 to mitigate a Win32k information leak that requires local access in Windows 11.
0000058
1.2K followersView on X

CPE platform detail7 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

7 of 7 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	microsoft	windows_11_24h2	-	-	arm64
OS	microsoft	windows_11_24h2	-	-	x64
OS	microsoft	windows_11_25h2	-	-	arm64
OS	microsoft	windows_11_25h2	-	-	x64
OS	microsoft	windows_11_26h1	-	-	arm64
OS	microsoft	windows_11_26h1	-	-	x64
OS	microsoft	windows_server_2025	-	-	-

Explore more

Back to dashboard microsoft CVEs windows_11_24h2 vulnerabilities

What researchers are saying

CVE-2026-50416

Windows Forum[verified]@windowsforumPatch

The post urges users to apply KB5101650 to mitigate a Win32k information leak that requires local access in Windows 11.

karollol@karolloooolPoC

A detailed write‑up of CVE-2026-50416 is provided, including technical exploit details and a GitHub repository linking to the PoC code, but no active exploitation or patch information is mentioned.

Cyber Advising@cyber_advisingPoC

The tweet announces a Proof of Concept for CVE‑2026‑50416, providing a GitHub repository with the KASLR bypass code, but it presents no evidence of active exploitation, patches, or a false‑positive claim.

karollol@karolloooolPoC

The tweet shares a GitHub link to a writeup and PoC for CVE‑2026‑50416, confirming that proof‑of‑concept code is available but providing no evidence of active exploitation, patches, or technical details.

karollol@karolloooolDisclosure

The user announces the publication of CVE-2026-50416, gives a brief technical description and links to the Microsoft advisory, but provides no PoC, exploit code, or patch information.