CVE-2020-5135
CVSS v3
9.8
CRITICAL
EPSS Score
25.0 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.
CISA Known Exploited Vulnerability
- Date Added
- 2022-03-15
- Patch Due Date
- 2022-04-05
- Ransomware Use
- Unknown
Technical details
- Published
- 2020-10-12
Frequently asked questions
What is CVE-2020-5135?
A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.
Is CVE-2020-5135 actively exploited?
Yes. CVE-2020-5135 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-05.
What is the CVSS score for CVE-2020-5135?
CVE-2020-5135 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2020-5135 affecting your environment?
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