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CVE-2025-33073VulnerabilityPublished Updated

CVE-2025-33073: Microsoft Windows 10 Version 1507 · Improper Access Control

Affects Microsoft Windows 10 Version 1507Source CVE Database V5

0

Exploited in the wild · KEV due 10 Nov 2025 · public exploit available (Exploit-DB) · 82% EPSS : apply the vendor's fix or mitigations to Microsoft Windows 10 Version 1507 now.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
KEV deadline
 US federal agencies must patch by this date; a sensible deadline for everyone else.
EPSS
82.6% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 10 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Exploited in the wild: evidence found.

    Listed in CISA KEV 132 days after disclosure

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by Microsoft Corporation

    , 56 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. In Threat Radar

    record ingested

    , 2 hours after disclosure

  4. First Exploit-DB entry (opens in a new tab)

    Windows 11 SMB Client - Privilege Escalation & Remote Code Execution (RCE)

    , 5 days after disclosure

  5. , 132 days after disclosure

  6. KEV remediation due

    US federal deadline

    , 153 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected software

ProductAffectedFixed in
Microsoft Windows 10 Version 1507Affected
  • =10.0.10240.0
Fixed in–

Description

CVE-2025-33073 is a high-severity vulnerability in Microsoft Windows 10 Version 1507 involving improper access control in the SMB protocol. It allows an authorized attacker to elevate privileges over a network without requiring user interaction. The vulnerability has a CVSS score of 8.8, indicating a significant impact on confidentiality, integrity, and availability. No patch or remediation information is currently provided by the vendor. There are no known exploits in the wild at this time.

References

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