Is CVE-2026-3470 in the CISA KEV catalog?

No. CVE-2026-3470 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-3470?

CVE-2026-3470 has a CVSS v3 base score of 3.8 (LOW).

What is the EPSS score for CVE-2026-3470?

CVE-2026-3470 has an EPSS score of 0.32% (24th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3470?

Upgrade email security to 10.0.35.8405 or later.

CVE & CISA-KEV Catalog

CVE-2026-3470

LOW

3.8

CVSS v3

NVD

Description

A vulnerability exists in the SonicWall Email Security appliance due to improper input sanitization that may lead to data corruption, allowing a remote authenticated attacker as admin user could exploit this issue by providing crafted input that corrupts application database.

CWE-20Improper Input Validation

How to fix

Remediation Available

email securityNVD

Affected:< 10.0.35.8405Fixed in:10.0.35.8405CVE-2026-3470derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

Exploit Intelligence

0.32%probability of exploitation in 30 days

24thpercentile

Low risk: more likely to be exploited than 24% of all known CVEs.

References

Vendor Advisory1

psirt.global.sonicwall.com

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-13.