Security readout for executives and security teams
Plain-English summary
This is a high-severity Windows flaw in the OCSP SnapIn that could let code run after user interaction. It affects several Windows 10, Windows 11, and Windows Server versions. The supplied evidence does not show active exploitation, but the impact is high if a vulnerable system is successfully targeted.
Executive priority
Treat as a normal high-priority Windows patching item, not an emergency active-exploitation event based on supplied evidence. Prioritize broad patch coverage because successful exploitation has full system impact on affected hosts.
Technical view
CVE-2023-35313 is a Windows Online Certificate Status Protocol SnapIn remote code execution vulnerability mapped to CWE-416, use-after-free. CVSS 3.1 is 7.8 with local attack vector, low complexity, no privileges required, user interaction required, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is concentrated on affected Windows endpoints and servers listed by Microsoft, including Windows 10, Windows 11, Windows Server 2016, 2019, and 2022 variants. The provided data does not identify a remotely exposed service; validation should focus on OS version and patch state.
Exploitation context
The source bundle does not indicate CISA KEV listing or active exploitation. The CVSS exploit maturity is unproven. Because user interaction is required and the attack vector is local, this is less urgent than wormable network RCE, but still material on user-facing Windows systems.
Researcher notes
The title says remote code execution, but the CVSS vector is local and requires user interaction. Avoid assuming network reachability from the title alone. Evidence is limited to public CVE and Microsoft advisory metadata in the provided bundle.
Mitigation direction
- Review Microsoft guidance for CVE-2023-35313 and apply the official security update.
- Prioritize user workstations and administrative Windows servers running affected versions.
- Include Server Core installations where Microsoft lists them as affected.
- Use standard endpoint hardening to reduce unsafe file and console interaction risks.
Validation and detection
- Inventory Windows assets against the affected product and version list.
- Verify patch compliance for CVE-2023-35313 using Microsoft update records.
- Check vulnerability scanner results for this CVE across endpoint and server groups.
- Confirm no unsupported Windows versions remain in production scope.
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-416: 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-2023-35313 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows Online Certificate Status Protocol (OCSP) SnapIn 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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.