Security readout for executives and security teams
Plain-English summary
This flaw affects Microsoft Windows DNS Server and could let a highly privileged remote attacker run code on a vulnerable DNS server. Business urgency is moderate: DNS servers are critical infrastructure, but the published CVSS vector requires high privileges and high attack complexity.
Executive priority
Schedule remediation through normal vulnerability management, with higher priority for domain controllers and exposed DNS infrastructure. The main risk is compromise of a critical name-resolution service if an attacker already has high privileges.
Technical view
CVE-2023-35346 is a Windows DNS Server remote code execution vulnerability with CVSS 3.1 score 6.6. The vector is network-accessible, high complexity, high privileges required, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations running affected Windows Server DNS Server versions from Server 2008 through Server 2022, including Server Core variants listed by Microsoft. Prioritize domain controllers or infrastructure servers that provide DNS services.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. Microsoft’s CVSS data marks exploit code maturity as unproven. Because exploitation requires high privileges and high complexity, this is less urgent than unauthenticated DNS RCEs but still important for core infrastructure.
Researcher notes
Key constraints are AV:N, AC:H, PR:H, UI:N, and high CIA impact. The bundle provides affected Windows Server families and an MSRC advisory, but no exploit details, no KEV status, and no named workaround beyond official remediation availability.
Mitigation direction
- Apply Microsoft’s official security update for CVE-2023-35346.
- Review MSRC guidance for version-specific update details.
- Prioritize DNS servers on domain controllers and internet-reachable infrastructure.
- Restrict DNS server administrative privileges to required personnel only.
- Confirm unsupported Windows Server versions have an upgrade or isolation plan.
Validation and detection
- Inventory Windows servers running the DNS Server role.
- Compare server versions against Microsoft’s affected product list.
- Verify CVE-2023-35346 security updates are installed.
- Check whether any affected DNS servers are externally reachable.
- Review privileged access paths to DNS administration.
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-591: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-35346 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
- 6.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/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:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C0.75.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.6MediumVector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows DNS Server Remote Code Execution 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.
Sensitive Data Storage in Improperly Locked Memory
Sensitive Data Storage in Improperly Locked Memory represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.