PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-18794 CalcProgrammer1 CVE debrief

The OpenRGB network protocol vulnerability (CVE-2026-18794) allows attackers to cause memory exhaustion and out-of-bounds memory reads and writes by passing inconsistent data. This HIGH-severity vulnerability, with a CVSS score of 8.8, affects organizations using the OpenRGB network protocol. The CVE record was published on 2026-08-26T10:16:40.167Z and has not been modified since then. To assess and mitigate this vulnerability, organizations should review their usage of the OpenRGB network protocol and implement necessary controls.

Vendor
CalcProgrammer1
Product
OpenRGB
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-26
Original CVE updated
2026-09-01
Advisory published
2026-08-26
Advisory updated
2026-09-01

Who should care

Organizations using the OpenRGB network protocol, operators of affected systems, and security teams responsible for vulnerability management should assess and mitigate this vulnerability to prevent potential memory exhaustion and data corruption. This involves reviewing the usage of the OpenRGB network protocol, implementing compensating controls, and monitoring for suspicious activity and exception tracking.

Technical summary

The OpenRGB network protocol is vulnerable to attacks causing memory exhaustion and out-of-bounds memory reads and writes due to inconsistent data. This HIGH-severity vulnerability has a CVSS score of 8.8. The vulnerability affects the OpenRGB network protocol, which is used in various systems. Organizations should assess their exposure and implement compensating controls to prevent potential memory exhaustion and data corruption.

Defensive priority

High-priority defensive actions are recommended due to the HIGH CVSS score of 8.8 for CVE-2026-18794, indicating a significant risk of memory exhaustion and out-of-bounds memory reads and writes.

Recommended defensive actions

  • Inventory and assess OpenRGB network protocol usage
  • Implement compensating controls to monitor and restrict inconsistent data
  • Review and apply vendor remediation if available
  • Monitor for suspicious activity and exception tracking

Evidence notes

Evidence is limited; primary official records indicate the OpenRGB network protocol allows attackers to cause memory exhaustion and out-of-bounds memory reads and writes by passing inconsistent data. Further verification is necessary to determine the full scope of affected systems and potential compensating controls.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-18794 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-18794

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-18794 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-18794

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.