CVE-2021-20031

MEDIUM 6.1CVE-2021-20031 · Published 12/10/2021 · updated 17/06/2026

In short

CVE-2021-20031 is a MEDIUM (CVSS 6.1) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 13.0%, higher than 96.3% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

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

References

packetstormsecurity.com/files/164502/Sonicwall-SonicOS-7.0-Host-Header-Injection.html · Exploit
psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0019 · Vendor Advisory

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