5.4

CVE-2023-36584: Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability

KEV
Analyzed
Published 10-10-2023Last modified 12-01-2026

Vulnerability summary

CVE-2023-36584 is a medium (CVSS 5.4) vulnerability in Microsoft Windows. It is known to be exploited: CISA lists it, first on 16-11-2023. EPSS estimates a 3.25% chance of exploitation in the next 30 days, higher than 88.2% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
3.25%
0%100%
Low · +0.20 pp in 30 days
KEVExploited in the wildCritical · listed in 1 catalog
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 10-10-2023
    PublishedVulnerability first disclosed.
  2. 16-11-2023
    Added to CISA KEVExploitedMicrosoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability
  3. 07-12-2023
    CISA remediation dueDeadline passedApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  4. 12-01-2026
    Last modifiedVulnerability information updated.

Description

Windows Mark of the Web Security Feature Bypass Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

3.25%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

Increase +0.20 pp

From 3.06% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
16-11-2023
Federal due date
07-12-2023
ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36584 nvd.nist.gov/vuln/detail/CVE-2023-36584

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft28 products

1 vendor · 28 products

References

2 links