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CVE-2021-20046

🗓️ 22 May 2025 19:05:51Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 5 Views

Stack-based buffer overflow in SonicOS causes Denial of Service and potential code execution.

Related
Refs
ReporterTitlePublishedViews
Family
BDU FSTEC
The vulnerability of the SonicOS operating systems arises from buffer overflows in the stack, allowing attackers to execute arbitrary code or cause system failures.
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CNNVD
SonicWall SonicOS 缓冲区错误漏洞
5 Jan 202200:00
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7 Jan 202203:00
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7 Jan 202203:00
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3 Oct 202520:07
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NCSC
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6 Jan 202200:00
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NVD
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10 Jan 202214:10
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OSV
CVE-2021-20046
10 Jan 202214:10
osv
Prion
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10 Jan 202214:10
prion
SonicWall
SonicOS Content-Length HTTP Header Stack Overflow Vulnerability
5 Jan 202218:25
sonicwall
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27 Mar 2026 15:04Current
7.7High risk
Vulners AI Score7.7
CVSS 26.5
CVSS 3.18.8
EPSS0.01365
5