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VulnerabilityPublished Updated

CVE-2022-40298: Crestron AirMedia · Incorrect Permissions

Source CVE Database V5

0

Not known to be exploited · CVSS 8.8 High · fixed in 5.5.1.84 : patch affected systems soon.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.5.1.84
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Sep 2022

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
n/a n/aAffected
  • <5.5.1.84
Fixed in
  • 5.5.1.84

AI-suggested

European organizations should prioritize the following mitigation steps: 1) Immediately identify and inventory all systems running Crestron AirMedia for Windows, focusing on versions prior to 5.5.1.84. 3) Until patches are applied, restrict access to affected systems by limiting user permissions and network exposure, especially for low-privileged accounts. 4) Implement application whitelisting and endpoint detection and response (EDR) solutions to monitor for unusual repair process initiations or privilege escalation attempts. 5) Conduct user awareness training to recognize potential exploitation symptoms and encourage reporting of anomalous system behavior. 6) Review and harden inherited permissions on critical system components and repair utilities to prevent unauthorized access. 7) Employ network segmentation to isolate systems running AirMedia from sensitive network segments. 8) Maintain up-to-date backups and incident response plans to quickly recover from potential compromises. These targeted actions go beyond generic advice by focusing on the specific application and exploitation vector involved.

Description

Crestron AirMedia for Windows before 5.5.1.84 has insecure inherited permissions, which leads to a privilege escalation vulnerability found in the AirMedia Windows Application, version 4.3.1.39. A low privileged user can initiate a repair of the system and gain a SYSTEM level shell.

References

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