All vulnerabilities
CVE-2021-20023

SonicWall Email Security Path Traversal Vulnerability

SonicWall SonicWall Email SecurityNetwork & edge
Open in ThreatlineRecord JSON
CVSS
4.9Medium
ExploitationExploited in the wildAdded to KEV 3 Nov 2021. Known ransomware useCISA KEV
Exploit odds (EPSS)51.7%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 deadline17 Nov 2021Remediation 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. 20 Apr 2021, 11:55 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

Description

SonicWall Email Security contains a path traversal vulnerability that allows a post-authenticated attacker to read files on the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20021 and CVE-2021-20022 to achieve privilege escalation.

Text from CVE List

Affected versions 1

  • Email Securityaffected: 10.0.9 and earlierCVE List

References 3