🛡️ CVE-2022-23092
🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-787 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The implementation of lib9p's handling of RWALK messages was missing a bounds check needed when unpacking the message contents. The missing check means that the receipt of a specially crafted message will cause lib9p to overwrite unrelated memory. The bug can be triggered by a malicious bhyve guest kernel to overwrite memory in the bhyve(8) process. This could potentially lead to user-mode code execution on the host, subject to bhyve's Capsicum sandbox.

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-787
Public Exploit ✅ No
Source NVD
Published 2024-02-15
Updated 2026-06-08
Modified 2025-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
freebsd

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