SonicWall Email Security
Auto-added after CISA flagged SonicWall Email Security as actively exploited (KEV catalog). Version and lifecycle mapping is pending review, so this is assessed at the product level and is never reported as a confident "healthy".
Known exploited vulnerability
CISA's Known Exploited Vulnerabilities (KEV) catalog flagged SonicWall Email Security (SonicWall) as exploited in the wild — that's why IsItPatched started tracking it. The vulnerability that triggered it:
CVE-2021-20021 ↗ view on NVD
Per-version vulnerability and lifecycle data for SonicWall Email Security is still being mapped, so no health score is shown yet. Treat it as urgent: identify the exact version you run and confirm it against SonicWall's advisory, then move to a patched, supported release.
Summary iPlain-English security verdict for SonicWall Email Security, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
SonicWall Email Security is on CISA's Known Exploited Vulnerabilities (KEV) catalog — it was confirmed under active attack in the wild, which is why CVE-2021-20021 led IsItPatched to start tracking SonicWall's SonicWall Email Security. Its per-version vulnerability and lifecycle data is still being mapped, so no health score is shown yet. Treat SonicWall Email Security as urgent: identify the exact version you run and confirm it against SonicWall's security advisory, then move to a patched, supported release.
Disclosure trend iNew CVEs published for SonicWall Email Security each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
No urgent unpatched issues identified. ✓
Get alerted about SonicWall Email Security
Be emailed the moment SonicWall Email Security gets a newly exploited vulnerability (CISA KEV) or a release reaches end of life. Free · double opt-in · unsubscribe anytime.
We email only on real events for SonicWall Email Security — no marketing, no sharing, and we never know what you run. Track your whole stack →
Frequently asked
Is SonicWall Email Security safe and patched?
SonicWall Email Security is on CISA's Known Exploited Vulnerabilities (KEV) catalog — it was confirmed under active attack in the wild, which is why CVE-2021-20021 led IsItPatched to start tracking SonicWall's SonicWall Email Security. Its per-version vulnerability and lifecycle data is still being mapped, so no health score is shown yet. Treat SonicWall Email Security as urgent: identify the exact version you run and confirm it against SonicWall's security advisory, then move to a patched, supported release.
What should I do about SonicWall Email Security now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against SonicWall's official advisory.
Why is SonicWall Email Security listed on IsItPatched?
SonicWall Email Security was added automatically because CISA's Known Exploited Vulnerabilities (KEV) catalog flagged it as actively exploited in the wild. IsItPatched tracks its known CVEs, severity (CVSS), exploitation probability (EPSS) and KEV status from public data; its version and lifecycle mapping is verified over time.
Has SonicWall Email Security been actively exploited?
Yes. CISA added SonicWall Email Security to its Known Exploited Vulnerabilities (KEV) catalog after confirming exploitation in the wild — the triggering vulnerability is CVE-2021-20021. Make sure you are running a patched, supported version of SonicWall Email Security and confirm it against SonicWall's security advisory.
Similar software we track
More from SonicWall tracked on IsItPatched.
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against SonicWall's official advisory before you patch or upgrade.