Security readout for executives and security teams
Plain-English summary
CVE-2023-33164 is a Microsoft Windows Remote Procedure Call Runtime denial-of-service issue. A successful attack could disrupt availability, but the source data shows no confidentiality or integrity impact. The CVSS vector indicates network access is possible, but the attacker needs low privileges.
Executive priority
Handle through normal monthly patch governance, with faster action for exposed servers or sensitive operational environments. Business risk is service disruption, not data theft based on current source evidence.
Technical view
The issue is categorized as CWE-125 and affects RPC Runtime on multiple Windows client and server releases. CVSS 3.1 is 6.5 with AV:N/AC:L/PR:L/UI:N and availability impact high. Microsoft lists an official remediation state, and the CVE is not in KEV.
Likely exposure
Exposure is most relevant on affected Windows endpoints and servers where RPC services are reachable by authenticated users, especially across flat internal networks or shared server environments.
Exploitation context
The provided sources do not confirm active exploitation. KEV is false, and the CVSS exploit maturity value is unproven, so treat exploitation status as not publicly evidenced here.
Researcher notes
Key constraints are PR:L and availability-only impact. The bundle does not include vulnerable function details, proof-of-concept status, or exploit telemetry, so validation should focus on asset exposure and patch state rather than exploit reproduction.
Mitigation direction
- Apply the Microsoft security update for each affected Windows version.
- Use the MSRC advisory for version-specific remediation details.
- Prioritize internet-facing or broadly reachable Windows servers.
- Reduce unnecessary RPC reachability between network zones where feasible.
- Track unsupported or legacy Windows systems separately for remediation planning.
Validation and detection
- Inventory Windows versions listed as affected in the source bundle.
- Confirm applicable Microsoft updates are installed on affected hosts.
- Check whether RPC is reachable from untrusted or broad internal networks.
- Validate that critical services remain available after patch deployment.
- Document exceptions with owner, compensating controls, and review date.
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-2023-33164 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.