How severe is CVE-2026-4114?

CVE-2026-4114 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-4114 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4114?

CVE-2026-4114 primarily affects Sonicwall Sma6210 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-4114?

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

Does CVE-2026-4114 have an EU (EUVD) identifier?

Yes. CVE-2026-4114 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20906.

When was CVE-2026-4114 published?

CVE-2026-4114 was published on 2026-04-09 and last updated on 2026-06-17.

CVE-2026-4114

CVE-2026-4114 is a medium-severity vulnerability in Sonicwall Sma6210 Firmware with a CVSS 3.x base score of 6.6. 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-176.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20906
Weakness: CWE-176
Affected product: Sonicwall Sma6210 Firmware
Published: 2026-04-09
Last modified: 2026-06-17

Description

Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN admin to bypass AMC TOTP authentication.

Frequently asked questions

What is CVE-2026-4114?: Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN admin to bypass AMC TOTP authentication.
How severe is CVE-2026-4114?: CVE-2026-4114 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-4114 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4114?: CVE-2026-4114 primarily affects Sonicwall Sma6210 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-4114?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4114 have an EU (EUVD) identifier?: Yes. CVE-2026-4114 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20906.
When was CVE-2026-4114 published?: CVE-2026-4114 was published on 2026-04-09 and last updated on 2026-06-17.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0003

Affected products (5)

cpe:2.3:o:sonicwall:sma6210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma6200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:sma8200v:*:*:*:*:*:*:*:*

More vulnerabilities in Sonicwall Sma6210 Firmware

CVE-2026-15409 — Critical (CVSS 10.0): A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A…
CVE-2025-23006 — Critical (CVSS 9.8): Pre-authentication deserialization of untrusted data vulnerability has been identified in the SMA1000 Appliance…
CVE-2026-15410 — High (CVSS 7.2): Post-authentication improper control of generation of code ('Code Injection') vulnerability has been identified in the…
CVE-2026-4116 — High (CVSS 7.2): Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN user…
CVE-2026-4113 — High (CVSS 7.2): An observable response discrepancy vulnerability in the SonicWall SMA1000 series appliances allows a remote attacker to…
CVE-2026-4112 — High (CVSS 7.2): Improper neutralization of special elements used in an SQL command (“SQL Injection”) in SonicWall SMA1000 series…

All CVEs affecting Sonicwall Sma6210 Firmware →

Other CWE-176 vulnerabilities

CVE-2025-71316 — Critical (CVSS 9.8): SQLite 'sqldiff.exe' does not securely handle the way the Microsoft Windows C runtime converts Unicode characters to…
CVE-2024-24691 — Critical (CVSS 9.6): Improper input validation in Zoom Desktop Client for Windows, Zoom VDI Client for Windows, and Zoom Meeting SDK for…
CVE-2026-23950 — High (CVSS 8.8): node-tar,a Tar for Node.js, has a race condition vulnerability in versions up to and including 7.5.3. This is due to an…
CVE-2024-43093 — High (CVSS 7.3): In shouldHideDocument of ExternalStorageProvider.java, there is a possible bypass of a file path filter designed to…
CVE-2026-4116 — High (CVSS 7.2): Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN user…
CVE-2026-20202 — Medium (CVSS 6.6): In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below…

Browse all CWE-176 vulnerabilities →