How severe is CVE-2025-40603?

CVE-2025-40603 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-40603 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40603?

CVE-2025-40603 primarily affects Sonicwall Sma 210 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-2025-40603?

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

Does CVE-2025-40603 have an EU (EUVD) identifier?

Yes. CVE-2025-40603 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37343.

When was CVE-2025-40603 published?

CVE-2025-40603 was published on 2025-10-31 and last updated on 2026-06-17.

CVE-2025-40603

CVE-2025-40603 is a medium-severity vulnerability in Sonicwall Sma 210 Firmware with a CVSS 3.x base score of 4.5. 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-532.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37343
Weakness: CWE-532
Affected product: Sonicwall Sma 210 Firmware
Published: 2025-10-31
Last modified: 2026-06-17

Description

A potential exposure of sensitive information in log files in SonicWall SMA100 Series appliances may allow a remote, authenticated administrator, under certain conditions to view partial users credential data.

Frequently asked questions

What is CVE-2025-40603?: A potential exposure of sensitive information in log files in SonicWall SMA100 Series appliances may allow a remote, authenticated administrator, under certain conditions to view partial users credential data.
How severe is CVE-2025-40603?: CVE-2025-40603 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-40603 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40603?: CVE-2025-40603 primarily affects Sonicwall Sma 210 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-2025-40603?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-40603 have an EU (EUVD) identifier?: Yes. CVE-2025-40603 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37343.
When was CVE-2025-40603 published?: CVE-2025-40603 was published on 2025-10-31 and last updated on 2026-06-17.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0017

Affected products (3)

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

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