6.1

CVE-2021-20031: sonicwall sonicos Open Redirect

CVSS: 6.1v3.1MediumModified
Published 12-10-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-20031 is a medium (CVSS 6.1) Open Redirect vulnerability in sonicwall sonicos. EPSS estimates a 13.04% chance of exploitation in the next 30 days, higher than 96.3% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
37/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
13.04%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database

Timeline

  1. 12-10-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

13.04%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

0.00 pp

From 13.04% on 18-09-2026

18-09-202618-10-2026
EPSS score
13.04%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

  • exploit-databasehardwareUnverified

    Sonicwall SonicOS 7.0 - Host Header Injection

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Sonicwall1 product
  • sonicos7.0.1-R1262 and earlier | 7.0.1-R1283 and earlier | 7.0.1-R579 and earlier | 6.5.4.7 and earlier | 6.5.1.12 and earlier | 6.0.5.3-94o and earlier | 6.5.4.4-44V-21-987 and earlier | 5.9.1.13 and earlier | ≤ 7.0.1-r1262 | ≤ 7.0.1-r1283 | ≤ 7.0.1-r579 | ≤ 6.5.4.7 | ≤ 6.5.1.12 | ≤ 6.0.5.3-94o | ≤ 5.9.1.13

1 vendor · 1 product

References

2 links