Security readout for executives and security teams
Plain-English summary
This is a high-severity Windows vulnerability in the Geolocation Service. Successful exploitation could let an attacker run code with serious confidentiality, integrity, and availability impact. The Microsoft data says exploitation needs local access conditions and user interaction, so it is urgent but not described as remotely wormable.
Executive priority
Prioritize remediation as a standard high-severity Windows patching item. The impact is severe if exploited, but available evidence does not support emergency treatment based on active exploitation.
Technical view
CVE-2023-35343 is a Windows Geolocation Service remote code execution issue mapped to CWE-426. Microsoft rates it CVSS 7.8 with local attack vector, low complexity, no privileges required, and user interaction required. Official remediation exists, and the CVSS exploit maturity is unproven.
Likely exposure
Exposure is limited to listed Microsoft Windows versions: Windows 10 1809, 21H2, 22H2; Windows 11 21H2, 22H2; Windows Server 2019, Server Core 2019, and Server 2022.
Exploitation context
The provided sources do not show active exploitation. The CVE is not marked KEV, and CVSS exploit maturity is unproven. Treat public exploitation evidence as incomplete unless confirmed by Microsoft, CISA KEV, or another cited source.
Researcher notes
Key constraints are AV:L and UI:R despite the RCE title. CWE-426 suggests search-path style risk, but the bundle does not provide technical root-cause detail, exploit prerequisites, or detection indicators.
Mitigation direction
- Apply Microsoft’s official update for CVE-2023-35343 per MSRC guidance.
- Prioritize affected Windows endpoints and servers in normal patch cycles.
- Confirm unsupported or end-of-life builds are upgraded or isolated.
- Monitor Microsoft guidance for any revised mitigation or detection advice.
Validation and detection
- Inventory Windows versions and builds against the affected product list.
- Verify installed updates against Microsoft’s CVE-2023-35343 advisory.
- Confirm Windows Server Core 2019 and Server 2022 assets are included.
- Document exceptions where patching is delayed and assign owners.
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-426: 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-2023-35343 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 Geolocation Service 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.
Untrusted Search Path
Untrusted Search Path represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.