Security readout for executives and security teams
Plain-English summary
CVE-2023-35329 is a Microsoft Windows Authentication denial-of-service issue. An attacker who already has low-level privileges could affect availability over the network. The sources do not indicate data theft or tampering impact, but disruption to Windows authentication can still create business outages.
Executive priority
Treat as a moderate-priority availability risk. Patch promptly on business-critical Windows systems, but the provided evidence does not support emergency handling based on active exploitation. Avoid deferring broadly because authentication outages can disrupt operations.
Technical view
Microsoft rates this as CVSS 6.5 medium: network attack vector, low complexity, low privileges required, no user interaction, no confidentiality or integrity impact, and high availability impact. The CWE is CWE-400, indicating uncontrolled resource consumption. Microsoft lists multiple Windows 10, Windows 11, and Windows Server versions as affected.
Likely exposure
Exposure is likely where affected Windows client or server versions remain unpatched, especially systems where Windows authentication availability is business-critical. The source bundle lists Windows 10, Windows 11, Windows Server 2012/2012 R2, 2016, 2019, and 2022 variants.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. CVSS marks exploit maturity as unproven. The vulnerability requires low privileges, so insider, compromised account, or already-authenticated network scenarios matter more than unauthenticated internet exposure.
Researcher notes
Public source detail is limited: no root-cause mechanics, attack flow, or service-specific indicators are included in the bundle. Analysis should stay anchored to MSRC, CVE, CVSS, affected versions, CWE-400, and absence of KEV evidence.
Mitigation direction
- Apply Microsoft security updates referenced by the MSRC advisory.
- Prioritize affected Windows servers and authentication-dependent endpoints.
- Verify patch status for all listed Windows versions in asset management.
- Check current Microsoft guidance before relying on compensating controls.
- Monitor authentication service health for availability degradation.
Validation and detection
- Inventory Windows versions against the affected product list.
- Confirm installed updates satisfy MSRC guidance for CVE-2023-35329.
- Identify systems where low-privileged network users can reach authentication services.
- Review monitoring for authentication outages or repeated service instability.
- Document exceptions with business owner and remediation date.
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-400: 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-2023-35329 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
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/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:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/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:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows Authentication Denial of Service 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.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.