CVE-2019-7483
HighExploitedPublic exploitIn SonicWall SMA100, an unauthenticated Directory Traversal vulnerability in the handleWAFRedirect CGI allows the user to test for the presence of a file on the server.
Published Mar 9, 2023 · Updated Oct 21, 2025
Key Facts
Patch immediately- CVE-2019-7483 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Sma 100 Firmware (Sonicwall), SMA100.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 28, 2022. Public exploit code is available.
- EPSS estimates a 4.0% probability of exploitation in the next 30 days.
- Fixed versions are available, including Sma 100 Firmware 9.0.0.4.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
4.0%
Higher than 90.4% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-7483 brief as a PDF
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Description
In SonicWall SMA100, an unauthenticated Directory Traversal vulnerability in the handleWAFRedirect CGI allows the user to test for the presence of a file on the server.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 28, 2022 | Apr 18, 2022 | Not reported |
| Industry KEV feed | Mar 28, 2022 | Apr 18, 2022 | Not reported |
| CIRCL KEV | Mar 28, 2022 | Apr 18, 2022 | Not reported |
| ENISA EUVD | Mar 28, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Sma 100 FirmwareSonicwall | See advisory | 9.0.0.4 |
| SMA100 | >= 9.0.0.3 and earlier | n/a |
Patched Releases
Sma 100 Firmware
9.0.0.4
Timeline
Added to CISA KEV
Mar 28, 2022
Added to Industry KEV feed
Mar 28, 2022
Added to CIRCL KEV
Mar 28, 2022
Added to ENISA EUVD
Mar 28, 2022
Publicly disclosed
Mar 9, 2023
Last updated
Oct 21, 2025
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisoryhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0018
- advisoryhttps://www.itsecuritynews.info/suspected-chinese-cyber-spies-target-unpatched-sonicwall-devices/
- advisoryhttps://www.theregister.com/2021/07/15/sonicwall_secure_access/
- advisoryVulnCheck exploitation report
- advisoryUSOM advisory
FAQ
Common Questions.
In SonicWall SMA100, an unauthenticated Directory Traversal vulnerability in the handleWAFRedirect CGI allows the user to test for the presence of a file on the server.
Affected: Sma 100 Firmware (Sonicwall); SMA100 versions >= 9.0.0.3 and earlier. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 28, 2022.
Yes. It was added on Mar 28, 2022 with a federal remediation due date of Apr 18, 2022.
Public exploit code is available.
Fixed versions are available, including Sma 100 Firmware 9.0.0.4.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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