CVE-2021-20023
Summary
| CVE | CVE-2021-20023 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-04-20 12:15:00 UTC |
| Updated | 2022-07-14 17:04:00 UTC |
| 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. |
Risk And Classification
EPSS: 0.514070000 probability, percentile 0.988280000 (date 2026-07-22)
CISA KEV: Listed on 2021-11-03; due 2021-11-17; ransomware use Known
Problem Types: CWE-22
CISA Known Exploited Vulnerability
| Vendor | SonicWall |
|---|---|
| Product | SonicWall Email Security |
| Name | SonicWall Email Security Path Traversal Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2021-20023 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Sonicwall | Email Security | All | All | All | All |
| Application | Sonicwall | Email Security | All | All | All | All |
| Application | Sonicwall | Email Security | All | All | All | All |
| Application | Sonicwall | Hosted Email Security | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Security Advisory | CONFIRM | psirt.global.sonicwall.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 730402 SonicWall On-Premise Email Post-Authentication Arbitrary File Read Vulnerability (SNWLID-2021-0010)