CVE-2023-36563Microsoft WordPad Information Disclosure Vulnerability
- 6.5MediumCVSS base score
- 20.3%Exploitation in 30 daysEPSS · top 2.5% of all CVEs
- YesKnown exploitedin CISA's KEV since 10 Oct 2023
- YesPublic exploitsa reference or SSVC says so
Description
Microsoft WordPad Information Disclosure Vulnerability
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft WordPad Information Disclosure Vulnerability.
- Added
- 10 Oct 2023
- Fix due (US federal)
- 31 Oct 2023
- Used by ransomware
- Not known
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 10 Oct 2023.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By microsoft
- 4 months later
· 4 months later
Published
Added to CISA KEV
Known exploited in the wild
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | Medium6.5 | 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 |
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 20.3% · top 2.5% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.4974
Microsoft · Windows 10 Version 1809
- affected 10.0.0 – < 10.0.17763.4974
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.4974
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.4974
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.2031
Microsoft · Windows 11 version 21H2
- affected 10.0.0 – < 10.0.22000.2538
Microsoft · Windows 10 Version 21H2
- affected 10.0.19043.0 – < 10.0.19041.3570
Microsoft · Windows 11 version 22H2
- affected 10.0.22621.0 – < 10.0.22621.2428
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.3570
Microsoft · Windows 10 Version 1507
- affected 10.0.10240.0 – < 10.0.10240.20232
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.6351
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.6351
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.6351
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.22317
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)
- affected 6.0.6003.0 – < 6.0.6003.22317
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.22317
Microsoft · Windows Server 2008 R2 Service Pack 1
- affected 6.1.7601.0 – < 6.1.7601.26769
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected 6.1.7601.0 – < 6.1.7601.26769
Microsoft · Windows Server 2012
- affected 6.2.9200.0 – < 6.2.9200.24523
Microsoft · Windows Server 2012 (Server Core installation)
- affected 6.2.9200.0 – < 6.2.9200.24523
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < 6.3.9600.21620
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < 6.3.9600.21620
References
References2
- Microsoft WordPad Information Disclosure Vulnerability (opens in a new tab)vendor-advisoryx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36563 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-40509 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-36563)Record last updated .