HOMEVULNERABILITIESCVE-2026-33101
HIGH

CVE-2026-33101

CWE-416Published: April 14, 2026· Updated: Apr 17, 2026

7.8
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:13.3th

Official Description

Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.

NVD Source

Technical Analysis

CVE-2026-33101 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Microsoft5 products
windows 11 24h2windows 11 25h2windows 11 26h1windows server 2022 23h2windows server 2025
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33101

All References (1)

→
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33101Vendor Advisory

Quick Facts

CVE IDCVE-2026-33101
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-416
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedApr 14, 2026

Related CVEs (CWE-416)

CVE-2026-13782
10.0
CVE-2026-33278
9.8
CVE-2026-25997
9.8
CVE-2026-25959
9.8
CVE-2026-8695
9.8
CVE-2026-25955
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33101 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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