How severe is CVE-2025-40598?

CVE-2025-40598 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-40598 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 53% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40598?

CVE-2025-40598 primarily affects Sonicwall Sma 500v Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-40598?

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

Does CVE-2025-40598 have an EU (EUVD) identifier?

Yes. CVE-2025-40598 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22454.

When was CVE-2025-40598 published?

CVE-2025-40598 was published on 2025-07-23 and last updated on 2026-06-17.

CVE-2025-40598

CVE-2025-40598 is a medium-severity vulnerability in Sonicwall Sma 500v Firmware with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 53% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 53% (99th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22454
Weakness: CWE-79
Affected product: Sonicwall Sma 500v Firmware
Published: 2025-07-23
Last modified: 2026-06-17

Description

A Reflected cross-site scripting (XSS) vulnerability exists in the SMA100 series web interface, allowing a remote unauthenticated attacker to potentially execute arbitrary JavaScript code.

Frequently asked questions

What is CVE-2025-40598?: A Reflected cross-site scripting (XSS) vulnerability exists in the SMA100 series web interface, allowing a remote unauthenticated attacker to potentially execute arbitrary JavaScript code.
How severe is CVE-2025-40598?: CVE-2025-40598 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-40598 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 53% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40598?: CVE-2025-40598 primarily affects Sonicwall Sma 500v Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-40598?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-40598 have an EU (EUVD) identifier?: Yes. CVE-2025-40598 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22454.
When was CVE-2025-40598 published?: CVE-2025-40598 was published on 2025-07-23 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:sonicwall:sma_500v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:*

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