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PatchSiren cyber security CVE debrief

CVE-2019-3929 Crestron CVE debrief

CVE-2019-3929 is a command injection vulnerability affecting Crestron Multiple Products. CISA added it to the Known Exploited Vulnerabilities catalog on 2022-04-15, which means it has been recognized as actively exploited and should be treated as urgent for remediation. The supplied source corpus does not include affected versions or vendor advisory details, so defenders should rely on Crestron’s guidance and official vulnerability records to identify exposure and confirm remediation status.

Vendor
Crestron
Product
Multiple Products
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-04-15
Original CVE updated
2022-04-15
Advisory published
2022-04-15
Advisory updated
2022-04-15

Who should care

Organizations that operate Crestron devices or management interfaces, especially IT, facilities, AV, and security teams responsible for patching, network segmentation, and monitoring of internet-facing or internally accessible Crestron systems.

Technical summary

The available evidence identifies CVE-2019-3929 as a command injection issue in Crestron Multiple Products and confirms its inclusion in CISA’s KEV catalog. Beyond that, the supplied corpus provides no version ranges, attack preconditions, or vendor remediation specifics. Because CISA lists it as known exploited, defenders should assume practical risk until affected systems are identified and updated per vendor instructions.

Defensive priority

Urgent

Recommended defensive actions

  • Inventory Crestron products and confirm whether any deployments are affected by CVE-2019-3929.
  • Apply Crestron updates and mitigations according to vendor instructions.
  • Prioritize remediation for any exposed, remotely reachable, or management-facing Crestron systems.
  • Review authentication, command-execution, and system logs for anomalous activity around the time of exposure.
  • Restrict network access to Crestron management interfaces and isolate affected devices where possible.

Evidence notes

This debrief is based only on the supplied CISA KEV source item and the official CVE/NVD links. The corpus confirms the vulnerability name, vendor/product grouping, KEV inclusion, date added, and CISA’s required action to apply vendor updates. It does not provide affected versions, exploitation details, or a CVSS score, so no such specifics are stated here.

Official resources

CISA added CVE-2019-3929 to the Known Exploited Vulnerabilities catalog on 2022-04-15 with a remediation due date of 2022-05-06, indicating known exploitation and the need for prompt vendor-guided remediation.