Back to Database
Status published
High
CVE-2021-20019
A vulnerability in SonicOS where the HTTP server response leaks...
Vulnerability Description
A vulnerability in SonicOS where the HTTP server response leaks partial memory by sending a crafted HTTP request, this can potentially lead to an internal sensitive data disclosure vulnerability.
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-2021-20019
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
SonicOS
Vulnerable Versions:
SonicOS - 6.5.4.7-83n, SonicOSv - 6.5.4.4-44v-21-955, SonicOS - 6.5.1.12-3n, SonicOS - 6.0.5.3-94o, SonicOS - 7.0.0-R713 and earlier, SonicOS - 7.0.1-R1036 and earlier, SonicOS - 7.0.0.375 and earlier
Timeline
Official Publish:
June 23rd, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N