Security readout for executives and security teams
Plain-English summary
Crestron AirMedia for Windows before 5.5.1.84 can let a low-privileged Windows user gain SYSTEM-level control through insecure inherited permissions. This matters on shared workstations and meeting-room systems because compromise of one user account could become full device control.
Executive priority
Treat as a high-priority endpoint remediation issue where AirMedia is deployed. It is not documented here as actively exploited, but SYSTEM-level escalation can materially increase the impact of ordinary account compromise.
Technical view
The CVE maps to CWE-732. The source describes insecure inherited permissions in the AirMedia Windows Application, observed in version 4.3.1.39, allowing a low-privileged user to initiate repair and gain SYSTEM privileges. CVSS 3.1 is 8.8 high.
Likely exposure
Exposure is likely where Crestron AirMedia for Windows is installed below 5.5.1.84. The source bundle lacks normalized CPEs, so vulnerability managers should confirm exposure through software inventory rather than relying only on CPE matching.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The described impact is serious because exploitation would convert low privileges into SYSTEM privileges, but evidence here does not support claims of public exploitation or campaign activity.
Researcher notes
The record identifies insecure inherited permissions and a repair-triggered privilege escalation path, but the bundle does not include detailed affected CPEs, exploit telemetry, or workaround instructions. Keep analysis bounded to Crestron AirMedia for Windows before 5.5.1.84.
Mitigation direction
- Upgrade Crestron AirMedia for Windows to 5.5.1.84 or later.
- Review Crestron security advisories and release notes for current vendor guidance.
- Remove AirMedia from Windows systems where it is not required.
- Prioritize shared workstations, meeting-room PCs, and broadly accessible endpoints.
Validation and detection
- Inventory Windows endpoints for Crestron AirMedia installations.
- Confirm installed versions are 5.5.1.84 or later.
- Check whether legacy version 4.3.1.39 exists in the environment.
- Verify remediation through endpoint management or software inventory evidence.
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-732: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2022-40298 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
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.crestron.com/Security/Security_AdvisoriesCVE reference · x_refsource_MISC
- https://www.crestron.com/release_notes/airmedia_windows_installer_release_notes_5.5.1.84.pdfCVE reference · x_refsource_MISC
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.
Incorrect Permission Assignment for Critical Resource
Incorrect Permission Assignment for Critical Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.