What is CVE-2023-36563?

CVE-2023-36563 is a medium-severity vulnerability in Microsoft Windows 10 Version 1507, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2023-10-10.

How severe is CVE-2023-36563?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-36563 known to be exploited?

Yes. CVE-2023-36563 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-10-10), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

Improper input validation in Microsoft Windows 10 Version 1507

CVE-2023-36563

Microsoft WordPad Information Disclosure Vulnerability

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.028 (86.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C.

Affected products

Microsoft Windows 10 Version 1507 — versions 10.0.10240.0
Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
Microsoft Windows 10 Version 1809 — versions 10.0.17763.0, 10.0.0
Microsoft Windows 10 Version 21h2 — versions 10.0.19043.0
Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
Microsoft Windows 11 Version 21h2 — versions 10.0.0
Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
Microsoft Windows Server 2008 R2 Service Pack 1 — versions 6.1.7601.0
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core Installation) — versions 6.1.7601.0
Microsoft Windows Server 2008 Service Pack 2 — versions 6.0.6003.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2023-10-10. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2023-10-31.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public proof-of-concept exploits

References

Microsoft WordPad Information Disclosure Vulnerability (vendor-advisory)

Frequently asked questions

What is CVE-2023-36563?: CVE-2023-36563 is a medium-severity vulnerability in Microsoft Windows 10 Version 1507, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2023-10-10.
How severe is CVE-2023-36563?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-36563 known to be exploited?: Yes. CVE-2023-36563 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-10-10), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.