Security readout for executives and security teams
Plain-English summary
CVE-2023-35345 is a Microsoft Windows DNS Server remote code execution vulnerability. The listed impact is serious if exploited, but the CVSS vector shows high attack complexity and high privileges are required. It should be handled through normal server patch governance, with priority on domain controllers and DNS servers exposed to less-trusted networks.
Executive priority
Treat as a moderate operational security item. The potential impact is high, but available evidence shows high privilege and high complexity requirements, with no KEV signal in the provided sources. Patch through established Windows Server maintenance, prioritizing critical DNS infrastructure.
Technical view
Microsoft lists this as a Windows DNS Server RCE affecting multiple Windows Server releases, including 2008 through 2022 and Server Core variants. CVSS 3.1 is 6.6 with AV:N/AC:H/PR:H/UI:N/S:U and high confidentiality, integrity, and availability impact. CWE-591 is associated in the source bundle.
Likely exposure
Organizations are exposed if they run the Windows DNS Server role on affected Windows Server versions and have not applied the relevant Microsoft guidance or updates. Exposure is most important on DNS infrastructure reachable from broad internal networks, partner networks, or the internet.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. Microsoft’s CVSS vector indicates exploitation is network reachable but requires high privileges and high complexity, which materially reduces practical likelihood compared with unauthenticated DNS server RCE issues.
Researcher notes
Key constraints are PR:H and AC:H despite RCE impact. The source bundle does not provide exploit mechanics, affected configurations beyond Windows DNS Server, or named mitigations beyond Microsoft advisory direction. Avoid assuming internet-wide exploitability without additional vendor or threat-intelligence evidence.
Mitigation direction
- Review Microsoft MSRC guidance for CVE-2023-35345.
- Apply applicable Microsoft security or cumulative updates.
- Prioritize DNS servers, domain controllers, and Server Core deployments.
- Restrict DNS server administration to trusted privileged paths.
- Reduce unnecessary network reachability to Windows DNS services.
Validation and detection
- Inventory Windows servers running the DNS Server role.
- Map hosts to the affected Windows Server versions listed by Microsoft.
- Verify installed updates against Microsoft guidance for CVE-2023-35345.
- Confirm DNS services are not unnecessarily internet exposed.
- Document remaining exceptions and compensating controls.
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-2023-35345 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.