Actively exploited · Published Oct 10, 2023 · Assigned by microsoft
CVE-2023-36584Windows Mark of the Web Security Feature Bypass Vulnerability
Medium 5.4 Exploited
In plain English
A medium-severity security flaw in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on November 16, 2023). The chance it is exploited in the next 30 days is estimated at 3.3% (higher than 88% of all known vulnerabilities). Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)3.3%top 11.6% of all CVEs
Exploited in the wildYesCISA KEV since Nov 16, 2023
Attack toolingNoneno public tooling known
CISA guidance
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Dec 7, 2023.
Official description
Windows Mark of the Web Security Feature Bypass Vulnerability