Back to Database
Status published
High
CVE-2021-20024
Multiple Out-of-Bound read vulnerability in SonicWall Switch when handling LLDP...
Vulnerability Description
Multiple Out-of-Bound read vulnerability in SonicWall Switch when handling LLDP Protocol allows an attacker to cause a system instability or potentially read sensitive information from the memory locations.
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-2021-20024
Credits & Attribution
No credits recorded in the NVD database.
More from SonicWall
View All →CVE-2025-40605
A Path Traversal vulnerability has been identified in the Email...
Unknown
0
CVE-2025-40604
Download of Code Without Integrity Check Vulnerability in the SonicWall...
Unknown
0
CVE-2025-40603
A potential exposure of sensitive information in log files in...
Unknown
0
CVE-2025-40602
A local privilege escalation vulnerability due to insufficient authorization in...
Unknown
0
CVE-2025-40601
A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service...
Unknown
0
Affected Vendor
SonicWall
View all reports →Affected Software
SonicWall Switch
Vulnerable Versions:
1.0.0.5-16 and earlier
Timeline
Official Publish:
July 9th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H