# CVE-2026-86819

## Summary

- **CVE ID:** CVE-2026-86819
- **Severity:** HIGH
- **CVSS Score:** 8.4 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-862
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 14, 2026

## Description

Waves Central for macOS contains a local privilege escalation in the privileged helper service. The helper authorizes connecting XPC clients by comparing the caller's code-signing certificate chain for equality with its own, rather than validating the caller against a pinned code requirement (application identifier and Team ID). A local, authenticated user can execute code within the vendor-signed process, satisfy the helper's client check, and cause the helper to execute a script with root privileges. Fixed in 17.0.

## Affected Products

- Waves Audio Ltd. — Waves Central (16.6.2)
- Waves Audio Ltd. — Waves Central (17.0)

## References

- [CNA](https://www.waves.com/downloads/release-notes#v17)
- [CNA](https://www.cve.org/CVERecord?id=CVE-2026-86819)
- [CNA](https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-251-02.json)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.07%
- **EPSS Percentile:** 0.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._