How severe is CVE-2026-15409?

CVE-2026-15409 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-15409 being actively exploited?

Yes. CVE-2026-15409 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-07-14, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-15409?

CVE-2026-15409 primarily affects Sonicwall Sma6210 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-15409?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

When was CVE-2026-15409 published?

CVE-2026-15409 was published on 2026-07-14 and last updated on 2026-07-16.

CVE-2026-15409

CVE-2026-15409 is a critical-severity vulnerability in Sonicwall Sma6210 Firmware with a CVSS 3.x base score of 10.0. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-07-14). The underlying weakness is classified as CWE-918.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 74% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-07-14)
Weakness: CWE-918
Affected product: Sonicwall Sma6210 Firmware
Published: 2026-07-14
Last modified: 2026-07-16

Description

A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A remote unauthenticated attacker could potentially cause the appliance to make requests to unintended location.

Frequently asked questions

What is CVE-2026-15409?: A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A remote unauthenticated attacker could potentially cause the appliance to make requests to unintended location.
How severe is CVE-2026-15409?: CVE-2026-15409 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-15409 being actively exploited?: Yes. CVE-2026-15409 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-07-14, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-15409?: CVE-2026-15409 primarily affects Sonicwall Sma6210 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-15409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
When was CVE-2026-15409 published?: CVE-2026-15409 was published on 2026-07-14 and last updated on 2026-07-16.

References

Affected products (18)

cpe:2.3:o:sonicwall:sma6210_firmware:12.4.3-03245:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma6210_firmware:12.4.3-03387:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma6210_firmware:12.4.3-03434:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma6210_firmware:12.5.0-02283:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma6210_firmware:12.5.0-02624:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma6210_firmware:12.5.0-02800:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:12.4.3-03245:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:12.4.3-03387:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:12.4.3-03434:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:12.5.0-02283:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:12.5.0-02624:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:12.5.0-02800:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:sma8200v:12.4.3-03245:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:sma8200v:12.4.3-03387:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:sma8200v:12.4.3-03434:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:sma8200v:12.5.0-02283:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:sma8200v:12.5.0-02624:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:sma8200v:12.5.0-02800:*:*:*:*:*:*:*

More vulnerabilities in Sonicwall Sma6210 Firmware

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…
CVE-2026-4114 — Medium (CVSS 6.6): Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN admin…

All CVEs affecting Sonicwall Sma6210 Firmware →

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities

CVE-2026-69502 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure SQL Database allows an unauthorized attacker to elevate privileges over a…
CVE-2026-65801 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges…
CVE-2026-48331 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in…
CVE-2026-54735 — Critical (CVSS 10.0): Prebid Server is an open-source solution for running real-time advertising auctions in the cloud. Prior to version…
CVE-2026-57106 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Data Quality allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-47938 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by a Server-Side Request Forgery (SSRF)…

Browse all CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities →