Security readout for executives and security teams
Plain-English summary
CVE-2023-35318 is a Microsoft Windows RPC Runtime flaw that can cause denial of service. A low-privileged network attacker could disrupt availability on affected Windows client or server systems. The business concern is service interruption, not data theft or privilege escalation based on the supplied sources.
Executive priority
Handle in the normal monthly patch cycle, with faster treatment for critical Windows servers or broadly reachable internal systems. The urgency is moderate because the known impact is denial of service and the sources do not show active exploitation.
Technical view
The issue is tracked as CWE-125 and scored CVSS 3.1 6.5: network attack vector, low complexity, low privileges required, no user interaction, and high availability impact. Microsoft lists affected Windows 10, Windows 11, and Windows Server versions from 2008 through 2022.
Likely exposure
Exposure is likely where affected Windows versions remain unpatched. Systems running RPC-dependent workloads and reachable by authenticated users over network paths deserve priority review, especially Windows servers. The sources do not identify specific vulnerable configurations beyond Microsoft’s affected product list.
Exploitation context
The source bundle says this CVE is not in CISA KEV and CVSS exploit maturity is unproven. No provided source claims active exploitation or public exploit availability. Treat it as a credible availability-risk patching item, not as confirmed in-the-wild activity.
Researcher notes
Evidence is limited to Microsoft and CVE records. The vulnerability maps to out-of-bounds read and availability impact only. Avoid assuming unauthenticated exploitation, code execution, or specific vulnerable services; the CVSS vector requires low privileges and provides no exploit detail.
Mitigation direction
- Apply Microsoft security updates for CVE-2023-35318 per MSRC guidance.
- Prioritize exposed or business-critical Windows servers using affected versions.
- Restrict unnecessary RPC access between network segments where operationally feasible.
- Monitor Microsoft guidance for any revised remediation or affected-product details.
Validation and detection
- Inventory Windows client and server versions against Microsoft’s affected list.
- Confirm July 2023 or later applicable Microsoft security updates are installed.
- Check vulnerability management tools for CVE-2023-35318 detection status.
- Review segmentation and firewall rules limiting RPC reachability to trusted paths.
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-125: 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 lookupCVE-2023-35318 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Remote Procedure Call Runtime Denial of Service 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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.