Security readout for executives and security teams
Plain-English summary
CVE-2023-35310 is a Microsoft Windows DNS Server remote code execution vulnerability. It affects multiple Windows Server releases. The business risk is moderate: successful exploitation could be severe, but the published CVSS vector requires high privileges and high attack complexity.
Executive priority
Moderate priority. Schedule remediation in the normal vulnerability cycle, but accelerate for externally reachable or business-critical DNS infrastructure because successful exploitation could fully affect confidentiality, integrity, and availability.
Technical view
The CVSS 3.1 score is 6.6 with AV:N/AC:H/PR:H/UI:N/S:U and high confidentiality, integrity, and availability impact. Microsoft lists affected Windows Server versions from 2008 through 2022, including Server Core variants. The source bundle identifies an official remediation level, but does not describe exploit mechanics.
Likely exposure
Organizations running the Windows DNS Server role on affected Windows Server 2008, 2012, 2016, 2019, or 2022 systems may be exposed. Prioritize authoritative, recursive, domain, or business-critical DNS servers.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. Microsoft’s CVSS data lists exploit code maturity as unproven. Treat this as patch-relevant but not confirmed exploited based on provided sources.
Researcher notes
Evidence is limited to public CVE and Microsoft advisory metadata. The high-privilege and high-complexity requirements materially reduce likelihood, but impact remains high after successful exploitation. Do not infer vulnerable configurations beyond Windows DNS Server on listed Windows Server versions.
Mitigation direction
- Review Microsoft’s CVE-2023-35310 guidance for the applicable Windows Server version.
- Apply the vendor-provided security update where available.
- Prioritize DNS servers reachable from untrusted networks or critical internal zones.
- Restrict administrative access to DNS servers to trusted operators only.
Validation and detection
- Inventory Windows servers running the DNS Server role.
- Map discovered systems to the affected Windows Server versions listed by Microsoft.
- Confirm the relevant Microsoft security update is installed.
- Check whether DNS administration is limited to approved privileged users.
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-2023-35310 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.