What is CVE-2026-33829?
Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing over a network.
The record classifies CVE-2026-33829 under weakness class CWE-200. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first. 12 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 192 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 4.3 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C - EPSS (FIRST)
- 2.0% probability of exploitation in the next 30 days, higher than 80.5% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 7.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-04-14, last modified 2026-09-25
Is CVE-2026-33829 being exploited?
Weaponised exploit code for CVE-2026-33829 is publicly available. 3 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 38 in the Threadlinqs vulnerability feed.
- rahultb-sec/CVE-2026-33829-Writeup (github)
- seguridadentrerios/CVE-2026-33829 (github)
- trickest/cve (trickest)
Affected products and versions
- Microsoft: Windows 10 Version 1607, Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2
How to fix CVE-2026-33829
No vendor patch reference has been recorded for CVE-2026-33829 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-33829
2 tracked threats in the Threadlinqs corpus reference CVE-2026-33829, either in the campaign’s CVE list or as an indicator on the campaign record.
- Weekly threat digest (week ending 2026-06-07): PAN-OS GlobalProtect CVE-2026-0257 exploitation, React2Shell CVE-2025-55182 abuse by APT-C-26, and npm/state-actor campaigns — HIGH · 2026-10-18
- Unpatched Windows search: URI Handler NTLMv2 Hash Leak via crumb=location UNC Coercion (No CVE, Microsoft Won't Fix) — HIGH · 2026-06-03
Sources
Enriched from CVE.org, FIRST EPSS, public proof-of-concept repositories. Last verified by Threadlinqs on .