How severe is CVE-2026-3470?

CVE-2026-3470 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-3470 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3470?

CVE-2026-3470 affects Sonicwall Email Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3470?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3470 have an EU (EUVD) identifier?

Yes. CVE-2026-3470 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17644.

When was CVE-2026-3470 published?

CVE-2026-3470 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-3470

CVE-2026-3470 is a low-severity vulnerability in Sonicwall Email Security with a CVSS 3.x base score of 3.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Low (CVSS 3.x base score 3.8)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17644
Weakness: CWE-20
Affected product: Sonicwall Email Security
Published: 2026-03-31
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-3470?: 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.
How severe is CVE-2026-3470?: CVE-2026-3470 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-3470 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3470?: CVE-2026-3470 affects Sonicwall Email Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3470?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3470 have an EU (EUVD) identifier?: Yes. CVE-2026-3470 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17644.
When was CVE-2026-3470 published?: CVE-2026-3470 was published on 2026-03-31 and last updated on 2026-06-17.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0002

Affected products (1)

cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:*

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