Security readout for executives and security teams
Plain-English summary
CVE-2023-35305 is a high-severity Windows Kernel elevation of privilege issue. An attacker who already has low-level local access could potentially gain higher privileges on affected Windows endpoints or servers, increasing the impact of a compromised account or foothold.
Executive priority
Treat as a standard high-priority Windows patching item. It is not evidenced as actively exploited in the provided sources, but it can materially worsen any local compromise by enabling privilege escalation.
Technical view
The source bundle describes a Windows Kernel elevation of privilege vulnerability associated with CWE-122 and CVSS 7.8. Attack vector is local, attack complexity is low, privileges are required, and no user interaction is needed. Successful exploitation is rated high impact for confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on listed Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, and Windows Server 2022 systems that have not received Microsoft’s applicable security update.
Exploitation context
The bundle does not show CISA KEV listing or cited active exploitation. CVSS indicates exploitation requires local low-privileged access, so this is most relevant after phishing, malware, stolen credentials, or insider access.
Researcher notes
Evidence is limited to public CVE/MSRC metadata. The key technical signals are local attack vector, low complexity, required privileges, no user interaction, CWE-122, and confirmed official remediation. Do not infer remote exploitation or public exploit availability from this bundle.
Mitigation direction
- Apply Microsoft’s vendor-provided security update for CVE-2023-35305.
- Prioritize affected Windows servers, shared workstations, and high-value administrator endpoints.
- Review MSRC guidance for version-specific update and support details.
- Limit local user privileges where business operations allow.
- Monitor for unusual privilege escalation or kernel-related crash signals.
Validation and detection
- Inventory systems against the affected Windows versions listed in the advisory.
- Confirm each affected host has the Microsoft update resolving CVE-2023-35305.
- Check vulnerability scanner results for remaining detections after patching.
- Validate unsupported or unpatched systems have an owner and remediation plan.
- Review endpoint telemetry for suspicious post-compromise privilege changes.
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-122: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-35305 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:L/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:L/AC:L/PR:L/UI:N/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:L/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 Kernel Elevation of Privilege 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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.