Attacker Value
Unknown
0
CVE-2021-20023
0
CVE ID
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CVE-2021-20023
(Last updated February 22, 2025) ▾
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Collection
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Command and Control
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Credential Access
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Execution
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Exfiltration
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Impact
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Initial Access
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Persistence
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Description
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
4.9 Medium
Impact Score:
3.6
Exploitability Score:
1.2
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Email Security 10.0.9 and earlier
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Exploited in the Wild
gwillcox-r7
indicated sources as
- Government or Industry Alert (https://www.ic3.gov/Media/News/2021/211029.pdf)
- News Article or Blog (https://www.fireeye.com/blog/threat-research/2021/04/zero-day-exploits-in-sonicwall-email-security-lead-to-compromise.html)
- Other: Ransomware Report 2023 (https://cybersecurityworks.com/howdymanage/uploads/file/Ransomware%20Report%202023_compressed.pdf)
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AttackerKB Worker indicated source as
Government or Industry Alert (https://www.cisa.gov/known-exploited-vulnerabilities-catalog)
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Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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