CVE-2023-36563

Microsoft WordPad Information Disclosure Vulnerability

MEDIUM

5.5

CVSS Score

Published: October 10, 2023 at 05:08 PM UTC

Updated: June 17, 2026 at 06:06 AM UTC

12 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity

MEDIUM5.5

Exploitation

CISA KEV

Exploit prediction

EPSS 20%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score20.3%

EPSS (Exploit Prediction Scoring System) estimates a 20.3% chance this CVE is exploited in the wild within the next 30 days — higher than 97% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Microsoft WordPad contains an unspecified vulnerability that allows for information disclosure.

Required Action

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

Ransomware Use

Unknown

Added to KEV

Oct 10, 2023

Remediation Due

Oct 31, 2023

1094 days overdue

Notes

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-36563

https://nvd.nist.gov/vuln/detail/CVE-2023-36563

Description

Microsoft WordPad Information Disclosure Vulnerability

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 1507 · Microsoft

95%

v < 10.0.10240.2023210.0.10240.0 ≤ v < 10.0.10240.2023210.0.10240.0

Affected range stops below 10.0.10240.20232, so it looks safe — our inference, not a vendor statement

Windows 10 1607 · Microsoft

95%

v < 10.0.14393.635110.0.14393.0 ≤ v < 10.0.14393.635110.0.14393.0

Affected range stops below 10.0.14393.6351, so it looks safe — our inference, not a vendor statement

Windows 10 1809 · Microsoft

95%

v < 10.0.17763.497410.0.0 ≤ v < 10.0.17763.497410.0.17763.0 ≤ v < 10.0.17763.497410.0.0 10.0.17763.0

Affected range stops below 10.0.17763.4974, so it looks safe — our inference, not a vendor statement

Windows 10 21H2 · Microsoft

95%

v < 10.0.19041.357010.0.19043.0 ≤ v < 10.0.19041.357010.0.19043.0

Affected range stops below 10.0.19041.3570, so it looks safe — our inference, not a vendor statement

Windows 10 22H2 · Microsoft

95%

v < 10.0.19045.357010.0.19045.0 ≤ v < 10.0.19045.357010.0.19045.0

Affected range stops below 10.0.19045.3570, so it looks safe — our inference, not a vendor statement

Windows 11 21H2 · Microsoft

95%

v < 10.0.22000.253810.0.0 ≤ v < 10.0.22000.253810.0.0

Affected range stops below 10.0.22000.2538, so it looks safe — our inference, not a vendor statement

Windows 11 22H2 · Microsoft

95%

v < 10.0.22621.242810.0.22621.0 ≤ v < 10.0.22621.242810.0.22621.0

Affected range stops below 10.0.22621.2428, so it looks safe — our inference, not a vendor statement

Windows Server 2008 · Microsoft

95%

6.0.6003.0 ≤ v < 6.0.6003.223176.1.7601.0 ≤ v < 6.1.7601.267696.0.6003.0 6.1.7601.0 r2 sp1sp2

Affected range stops below 6.0.6003.22317, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.1.7601.26769, so it looks safe — our inference, not a vendor statement

Windows Server 2012 · Microsoft

95%

6.2.9200.0 ≤ v < 6.2.9200.245236.3.9600.0 ≤ v < 6.3.9600.216206.2.9200.0 6.3.9600.0 r2

Affected range stops below 6.2.9200.24523, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.3.9600.21620, so it looks safe — our inference, not a vendor statement

Windows Server 2016 · Microsoft

95%

v < 10.0.14393.635110.0.14393.0 ≤ v < 10.0.14393.635110.0.14393.0

Affected range stops below 10.0.14393.6351, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36563

References (2)

Vendor AdvisoryPatch

Source: [email protected]

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36563

US Government Resource

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36563

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-20NVD-CWE-noinfo

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