CVE-2026-33829

4.3

MEDIUM CVSS 3.1

Windows Snipping Tool Spoofing Vulnerability

Overview

Description

Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing over a network.

Details

INFO

Published Date :

April 14, 2026, 6:17 p.m.

Last Modified :

April 21, 2026, 2:16 p.m.

Remotely Exploit :

No

Source :

[email protected]

Impact

Affected Products

The following products are affected by CVE-2026-33829 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product
1	Microsoft	windows_10
2	Microsoft	windows_server_2012
3	Microsoft	windows_server_2016
4	Microsoft	windows_server_2019
5	Microsoft	windows_10_1607
6	Microsoft	windows_10_1809
7	Microsoft	windows_10_21h2
8	Microsoft	windows_10_22h2
9	Microsoft	windows_server_2022
10	Microsoft	windows_11
11	Microsoft	windows_11_23h2
12	Microsoft	windows_server_2022_23h2
13	Microsoft	windows_server_23h2
14	Microsoft	windows_server_2012_r2
15	Microsoft	windows_11_24h2
16	Microsoft	windows_server_2025
17	Microsoft	windows_11_25h2
18	Microsoft	windows_11_26h1

: Total Affected Vendor : 1 | Products : 18

Scoring

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Score	Version	Severity	Vector	Exploitability Score	Impact Score	Source
	CVSS 3.1	MEDIUM				f38d906d-7342-40ea-92c1-6c4a2c6478c8
	CVSS 3.1	MEDIUM				[email protected]

Public PoC/Exploit Available at Github

CVE-2026-33829 has a 6 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-33829.

URL	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33829	Vendor Advisory
https://github.com/blackarrowsec/redteam-research/tree/master/CVE-2026-33829

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-33829 is associated with the following CWEs:

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-33829 weaknesses.

CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-116: Excavation Excavation CAPEC-169: Footprinting Footprinting CAPEC-224: Fingerprinting Fingerprinting CAPEC-285: ICMP Echo Request Ping ICMP Echo Request Ping CAPEC-287: TCP SYN Scan TCP SYN Scan CAPEC-290: Enumerate Mail Exchange (MX) Records Enumerate Mail Exchange (MX) Records CAPEC-291: DNS Zone Transfers DNS Zone Transfers CAPEC-292: Host Discovery Host Discovery CAPEC-293: Traceroute Route Enumeration Traceroute Route Enumeration CAPEC-294: ICMP Address Mask Request ICMP Address Mask Request CAPEC-295: Timestamp Request Timestamp Request CAPEC-296: ICMP Information Request ICMP Information Request CAPEC-297: TCP ACK Ping TCP ACK Ping CAPEC-298: UDP Ping UDP Ping CAPEC-299: TCP SYN Ping TCP SYN Ping CAPEC-300: Port Scanning Port Scanning CAPEC-301: TCP Connect Scan TCP Connect Scan CAPEC-302: TCP FIN Scan TCP FIN Scan CAPEC-303: TCP Xmas Scan TCP Xmas Scan CAPEC-304: TCP Null Scan TCP Null Scan CAPEC-305: TCP ACK Scan TCP ACK Scan CAPEC-306: TCP Window Scan TCP Window Scan CAPEC-307: TCP RPC Scan TCP RPC Scan CAPEC-308: UDP Scan UDP Scan CAPEC-309: Network Topology Mapping Network Topology Mapping CAPEC-310: Scanning for Vulnerable Software Scanning for Vulnerable Software CAPEC-312: Active OS Fingerprinting Active OS Fingerprinting CAPEC-313: Passive OS Fingerprinting Passive OS Fingerprinting CAPEC-317: IP ID Sequencing Probe IP ID Sequencing Probe CAPEC-318: IP 'ID' Echoed Byte-Order Probe IP 'ID' Echoed Byte-Order Probe CAPEC-319: IP (DF) 'Don't Fragment Bit' Echoing Probe IP (DF) 'Don't Fragment Bit' Echoing Probe CAPEC-320: TCP Timestamp Probe TCP Timestamp Probe CAPEC-321: TCP Sequence Number Probe TCP Sequence Number Probe CAPEC-322: TCP (ISN) Greatest Common Divisor Probe TCP (ISN) Greatest Common Divisor Probe CAPEC-323: TCP (ISN) Counter Rate Probe TCP (ISN) Counter Rate Probe CAPEC-324: TCP (ISN) Sequence Predictability Probe TCP (ISN) Sequence Predictability Probe CAPEC-325: TCP Congestion Control Flag (ECN) Probe TCP Congestion Control Flag (ECN) Probe CAPEC-326: TCP Initial Window Size Probe TCP Initial Window Size Probe CAPEC-327: TCP Options Probe TCP Options Probe CAPEC-328: TCP 'RST' Flag Checksum Probe TCP 'RST' Flag Checksum Probe CAPEC-329: ICMP Error Message Quoting Probe ICMP Error Message Quoting Probe CAPEC-330: ICMP Error Message Echoing Integrity Probe ICMP Error Message Echoing Integrity Probe CAPEC-472: Browser Fingerprinting Browser Fingerprinting CAPEC-497: File Discovery File Discovery CAPEC-508: Shoulder Surfing Shoulder Surfing CAPEC-573: Process Footprinting Process Footprinting CAPEC-574: Services Footprinting Services Footprinting CAPEC-575: Account Footprinting Account Footprinting CAPEC-576: Group Permission Footprinting Group Permission Footprinting CAPEC-577: Owner Footprinting Owner Footprinting CAPEC-616: Establish Rogue Location Establish Rogue Location CAPEC-643: Identify Shared Files/Directories on System Identify Shared Files/Directories on System CAPEC-646: Peripheral Footprinting Peripheral Footprinting CAPEC-651: Eavesdropping Eavesdropping

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

jenniferreire26/CVE-2026-33829

None

Updated: 6 days, 15 hours ago

0 stars 0 fork 0 watcher

Born at : June 9, 2026, 11:16 a.m. This repo has been linked 1 different CVEs too.

seguridadentrerios/CVE-2026-33829

None

Shell

Updated: 1 week, 3 days ago

0 stars 0 fork 0 watcher

Born at : June 5, 2026, 2:25 p.m. This repo has been linked 1 different CVEs too.

ByteWraith1/CVE-2026-33829

None

Updated: 1 week, 3 days ago

0 stars 0 fork 0 watcher

Born at : June 5, 2026, 12:14 p.m. This repo has been linked 1 different CVEs too.

tiffanykarihi23/CVE-2026-33829

None

Updated: 1 week, 3 days ago

3 stars 0 fork 0 watcher

Born at : June 4, 2026, 1:52 a.m. This repo has been linked 1 different CVEs too.

rahultb-sec/CVE-2026-33829-Writeup

Vulnerability Case Study: CVE-2026-33829 (Windows Snipping Tool NTLM Coercion)

Updated: 3 weeks, 4 days ago

0 stars 0 fork 0 watcher

Born at : May 21, 2026, 3:56 a.m. This repo has been linked 1 different CVEs too.

nomi-sec/PoC-in-GitHub

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 1 week, 1 day ago

7810 stars 1261 fork 1261 watcher

Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 718 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-33829 vulnerability anywhere in the article.

The Hacker News

Unpatched Windows Search URI Vulnerability Lets Attackers Steal NTLMv2 Hashes

Cybersecurity researchers have disclosed details of an unpatched issue that could be exploited to disclose a user's NTLMv2 hash to the attacker. Like in the case of CVE-2026-33829, which impacted the ...

Published Date: Jun 03, 2026 (1 week, 5 days ago)

CybersecurityNews

Windows Search URI Handler Flaw Leaks NTLMv2 Hashes to Attacker-Controlled Servers

A newly disclosed flaw in the Windows search URI handler can silently leak NTLMv2 hashes to attacker-controlled servers with nothing more than a single link click. This behavior is the same bug class ...

Published Date: Jun 03, 2026 (1 week, 5 days ago)

Huntress

Unpatched NTLM Coercion in Windows search: URI Handler, Same Bug, No CVE, No Fix

Acknowledgments:A special thank you to Tyler Bohlmann, Jon Semon, Lindsey O'Donnell-Welch, Aaron Deal, and Beth Robinson for their contributions and edits to this blog. And a big thank you to Casey Sm ...

Published Date: Jun 02, 2026 (1 week, 6 days ago)

Huntress

Unpatched NTLM Leakage in Windows search: URI Handler, Same Bug, No CVE, No Fix

Published Date: Jun 02, 2026 (1 week, 6 days ago)

CybersecurityNews

PoC Exploit Released for Windows Snipping Tool NTLM Hash Leak Vulnerability

A proof-of-concept (PoC) exploit has been publicly released for a newly disclosed vulnerability in Microsoft’s Snipping Tool that allows attackers to silently steal users’ Net-NTLM credential hashes b ...

Published Date: Apr 21, 2026 (1 month, 3 weeks ago)

CybersecurityNews

Windows Snipping Tool Vulnerability Allows Attacker to Perform Spoofing Over a Network

Microsoft has addressed a moderate-severity security flaw in the Windows Snipping Tool that could allow malicious actors to steal user credentials. Tracked as CVE-2026-33829, this spoofing vulnerabili ...

Published Date: Apr 17, 2026 (1 month, 4 weeks ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-33829 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

Apr. 21, 2026

Action	Type	Old Value	New Value
Added	Reference		https://github.com/blackarrowsec/redteam-research/tree/master/CVE-2026-33829

Initial Analysis by [email protected]

Apr. 17, 2026

Action	Type	Old Value	New Value
Added	CPE Configuration		OR cpe:2.3:o:microsoft:windows_server_2012:r2::::::: cpe:2.3:o:microsoft:windows_server_2012:-::::::: cpe:2.3:o:microsoft:windows_10_1607:::::::x64: versions up to (excluding) 10.0.14393.9060 cpe:2.3:o:microsoft:windows_10_1607:::::::x86: versions up to (excluding) 10.0.14393.9060 cpe:2.3:o:microsoft:windows_10_1809:::::::x64: versions up to (excluding) 10.0.17763.8644 cpe:2.3:o:microsoft:windows_10_1809:::::::x86: versions up to (excluding) 10.0.17763.8644 cpe:2.3:o:microsoft:windows_10_21h2:::::::arm64: versions up to (excluding) 10.0.19044.7184 cpe:2.3:o:microsoft:windows_10_21h2:::::::x64: versions up to (excluding) 10.0.19044.7184 cpe:2.3:o:microsoft:windows_10_21h2:::::::x86: versions up to (excluding) 10.0.19044.7184 cpe:2.3:o:microsoft:windows_10_22h2:::::::arm64: versions up to (excluding) 10.0.19045.7184 cpe:2.3:o:microsoft:windows_10_22h2:::::::x64: versions up to (excluding) 10.0.19045.7184 cpe:2.3:o:microsoft:windows_10_22h2:::::::x86: versions up to (excluding) 10.0.19045.7184 cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64: versions up to (excluding) 10.0.22631.6936 cpe:2.3:o:microsoft:windows_11_23h2:::::::x64: versions up to (excluding) 10.0.22631.6936 cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64: versions up to (excluding) 10.0.26100.8246 cpe:2.3:o:microsoft:windows_11_24h2:::::::x64: versions up to (excluding) 10.0.26100.8246 cpe:2.3:o:microsoft:windows_11_25h2:::::::arm64: versions up to (excluding) 10.0.26200.8246 cpe:2.3:o:microsoft:windows_11_25h2:::::::x64: versions up to (excluding) 10.0.26200.8246 cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64: versions up to (excluding) 10.0.28000.1836 cpe:2.3:o:microsoft:windows_11_26h1:::::::x64: versions up to (excluding) 10.0.28000.1836 cpe:2.3:o:microsoft:windows_server_2016::::::::* versions up to (excluding) 10.0.14393.9060 cpe:2.3:o:microsoft:windows_server_2019::::::::* versions up to (excluding) 10.0.17763.8644 cpe:2.3:o:microsoft:windows_server_2022::::::::* versions up to (excluding) 10.0.20348.5020 cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::* versions up to (excluding) 10.0.25398.2274 cpe:2.3:o:microsoft:windows_server_2025::::::::* versions up to (excluding) 10.0.26100.32690
Added	Reference Type		Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33829 Types: Vendor Advisory

New CVE Received by [email protected]

Apr. 14, 2026

Action	Type	New Value
Added	Description	Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing over a network.
Added	CVSS V3.1	AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Added	CWE	CWE-200
Added	Reference	https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33829

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.

CVE-2026-33829

Windows Snipping Tool Spoofing Vulnerability

Description

INFO

April 14, 2026, 6:17 p.m.

April 21, 2026, 2:16 p.m.

No

[email protected]