Security readout for executives and security teams
Plain-English summary
This is a Microsoft Windows Defender Credential Guard information disclosure issue. A local, low-privileged attacker could potentially expose sensitive information protected by Credential Guard. Microsoft rates exploitation as high-complexity, and the provided sources do not show known active exploitation.
Executive priority
Treat as a standard patch-management priority, with faster handling for administrative workstations, servers, and systems relying on Credential Guard for credential protection.
Technical view
CVE-2022-34704 is CWE-200 with CVSS 3.1 score 4.7: local attack vector, high complexity, low privileges, no user interaction, high confidentiality impact only. Microsoft lists an official remediation through its Update Guide.
Likely exposure
Exposure is limited to listed Windows client and server versions, including Windows 10, Windows 11 21H2, Windows Server 2016, 2019, 2022, and Server Core variants. Attack requires local access.
Exploitation context
The source bundle marks this CVE as not in CISA KEV and gives no cited evidence of active exploitation. CVSS exploit-code maturity is listed as unproven.
Researcher notes
The provided data does not describe the underlying information disclosure path. Avoid assuming remote exposure or credential theft mechanics beyond Microsoft’s classification and CVSS attributes.
Mitigation direction
- Apply Microsoft security updates referenced by the MSRC advisory.
- Prioritize systems using Credential Guard or holding privileged sessions.
- Retire or isolate unsupported affected Windows versions.
- Monitor Microsoft guidance for version-specific update requirements.
Validation and detection
- Inventory Windows versions against the affected product list.
- Confirm relevant Microsoft updates are installed on affected systems.
- Verify Credential Guard deployment on high-value endpoints and servers.
- Check vulnerability scanner results against CVE-2022-34704.
- Document exceptions for systems that cannot be patched promptly.
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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-34704 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
- 4.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/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.
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:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C13.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.7MediumVector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows Defender Credential Guard Information Disclosure VulnerabilityCVE reference · vendor-advisory
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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.