CVE-2022-21499 - CVE House
Back to Database
Status published Medium CVE-2022-21499

KGDB and KDB allow read and write access to kernel...

Vulnerability Description

KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-21499

Credits & Attribution

No credits recorded in the NVD database.

References

More from Oracle Corporation

View All →
CVE-2025-62641
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization...
High 8.2
CVE-2025-62592
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization...
Medium 6
CVE-2025-62591
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization...
Medium 6
CVE-2025-62590
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization...
High 8.2
CVE-2025-62589
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization...
High 8.2

Affected Vendor

Oracle Corporation

View all reports →

Affected Software

Oracle Linux, Oracle VM
Vulnerable Versions:
Oracle Linux: 6, Oracle Linux: 7, Oracle Linux: 8, Oracle VM: 3

Timeline

Official Publish: June 9th, 2022
Last Modified: September 24th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.