Threat Intelligence / CVE / CVE-2025-33073

CVE-2025-33073 — Microsoft Windows 10 Version 1507

CISA KEVRansomware
CVSS v3.1 8.8 (HIGH) · EPSS 37.1% (higher than 97.2% of all scored CVEs) · Priority 10/10 · Published 2025-06-10

As of 2026-02-26, CVE-2025-33073 is a HIGH-severity vulnerability in Microsoft Windows 10 Version 1507, CVSS v3.1 8.8, EPSS 37.1% (97.2th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-10-20), with a US federal remediation deadline of 2025-11-10, and CISA links it to known ransomware campaigns. Threadlinqs Intelligence links 5 tracked threat campaigns to CVE-2025-33073, most recently “The Gentlemen RaaS overtakes Qilin as #1 ransomware operation, wields GentleKiller EDR-killer framework (400+ processes, 8 BYOVD variants) and 90% affiliate payouts”.

Last updated: 2026-02-26

What is CVE-2025-33073?

Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.

The record classifies CVE-2025-33073 under weakness class CWE-284. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 10 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 459 days ago.

Severity and exploitation probability

CVSS v3.1 base score
8.8 — HIGH
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
EPSS (FIRST)
37.1% probability of exploitation in the next 30 days, higher than 97.2% of all scored CVEs
CISA KEV
Listed since 2025-10-20, federal remediation deadline 2025-11-10 — used in known ransomware campaigns
Threadlinqs priority
10/10 — CISA lists it as used in ransomware, which Threadlinqs scores at the maximum
Published
2025-06-10, last modified 2026-02-26

Is CVE-2025-33073 being exploited?

CISA added CVE-2025-33073 to the Known Exploited Vulnerabilities catalog on 2025-10-20, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2025-11-10 under BOD 22-01. CISA flags the vulnerability as one used in known ransomware campaigns. It currently carries a trending score of 44 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2025-33073

Because CVE-2025-33073 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2025-11-10. No vendor patch reference has been recorded for CVE-2025-33073 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-2025-33073

5 tracked threats in the Threadlinqs corpus reference CVE-2025-33073, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Seeded from cveorg and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2025-33073 are available via the Threadlinqs MCP server (Purple tier). View plans →

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