CVE-2025-40598
MediumPublic exploitA Reflected cross-site scripting (XSS) vulnerability exists in the SMA100 series web interface, allowing a remote unauthenticated attacker to potentially execute arbitrary JavaScript code.
Published Jul 23, 2025 · Updated Aug 7, 2025
Key Facts
Patch immediately- CVE-2025-40598 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Sma 210 Firmware (Sonicwall), Sma 410 Firmware (Sonicwall), Sma 500v Firmware (Sonicwall) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 64% probability of exploitation in the next 30 days.
- Fixed versions are available, including Sma 210 Firmware 10.2.2.1-90sv, Sma 410 Firmware 10.2.2.1-90sv, Sma 500v Firmware 10.2.2.1-90sv.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
64%
Higher than 99.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2025-40598 brief as a PDF
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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.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Sma 210 FirmwareSonicwall | See advisory | 10.2.2.1-90sv |
| Sma 410 FirmwareSonicwall | See advisory | 10.2.2.1-90sv |
| Sma 500v FirmwareSonicwall | See advisory | 10.2.2.1-90sv |
| SMA 100 Series | >= 10.2.1.15-81sv and earlier versions | n/a |
Patched Releases
Sma 210 Firmware
10.2.2.1-90sv
Sma 410 Firmware
10.2.2.1-90sv
Sma 500v Firmware
10.2.2.1-90sv
Timeline
Publicly disclosed
Jul 23, 2025
Last updated
Aug 7, 2025
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
FAQ
Common Questions.
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.
Affected: Sma 210 Firmware (Sonicwall); Sma 410 Firmware (Sonicwall); Sma 500v Firmware (Sonicwall), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Sma 210 Firmware 10.2.2.1-90sv, Sma 410 Firmware 10.2.2.1-90sv, Sma 500v Firmware 10.2.2.1-90sv.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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