All vulnerabilities
CVE-2020-5135

SonicWall SonicOS Buffer Overflow Vulnerability

SonicWall SonicOSNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 15 Mar 2022. Known ransomware useCISA KEV
Exploit odds (EPSS)26.9%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline5 Apr 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 12 Oct 2020, 10:40 UTCPublishedCVE List
  2. 15 Mar 2022Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 5

  • SonicOSaffected: SonicOS 6.5.4.7-79n and earlierCVE List
  • SonicOSaffected: SonicOS 6.5.1.11-4n and earlierCVE List
  • SonicOSaffected: SonicOS 6.0.5.3-93o and earlierCVE List
  • SonicOSaffected: SonicOSv 6.5.4.4-44v-21-794 and earlierCVE List
  • SonicOSaffected: SonicOS 7.0.0.0-1CVE List

References 3