Security readout for executives and security teams
Plain-English summary
This is a Microsoft WordPad information disclosure flaw affecting multiple Windows client and server versions. It requires user interaction, but CISA lists it as known exploited, so it should be treated as an active risk to confidentiality rather than a theoretical issue.
Executive priority
Prioritize remediation promptly because CISA identifies this vulnerability as known exploited. The business risk is sensitive information exposure from unpatched Windows systems, not service outage or system takeover based on the provided evidence.
Technical view
CVE-2023-36563 is a CWE-20 input validation issue in WordPad with CVSS 3.1 score 6.5. The vector is network reachable, low complexity, no privileges required, user interaction required, unchanged scope, and high confidentiality impact only.
Likely exposure
Exposure is tied to affected Windows systems where WordPad is present or reachable by users, including listed Windows 10, Windows 11, and Windows Server versions. Systems with unpatched affected builds are the primary concern.
Exploitation context
Active exploitation is supported by the CISA KEV listing. The provided CVSS vector indicates exploitation needs user interaction and can cause high confidentiality impact, with no stated integrity or availability impact.
Researcher notes
Evidence supports WordPad information disclosure with high confidentiality impact and required user interaction. The bundle does not provide exploit mechanics, indicators, or specific disclosed data types, so validation should focus on affected builds and Microsoft update status.
Mitigation direction
- Apply Microsoft guidance and security updates for CVE-2023-36563.
- Prioritize internet-facing and high-risk user workstations first.
- Include affected Windows Server builds in patch scope.
- Reduce exposure to untrusted documents until remediation is complete.
- Track CISA KEV due-date expectations where applicable.
Validation and detection
- Inventory Windows versions listed as affected in the source bundle.
- Confirm installed Microsoft updates cover CVE-2023-36563.
- Check vulnerability scanner results for remaining affected builds.
- Review endpoint exposure where users open untrusted documents.
- Document exceptions and compensating controls for unpatched systems.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-36563 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- Yes
- Published
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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft WordPad Information Disclosure VulnerabilityCVE reference · vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36563CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.