CVE-2019-7481
HighExploitedPublic exploitVulnerability in SonicWall SMA100 allow unauthenticated user to gain read-only access to unauthorized resources.
Published Mar 9, 2023 · Updated Aug 12, 2026 · Also known as TR-23-0138
Key Facts
Patch immediately- CVE-2019-7481 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 Nov 3, 2021 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 100% 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)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-7481 brief as a PDF
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Description
Vulnerability in SonicWall SMA100 allow unauthenticated user to gain read-only access to unauthorized resources. This vulnerablity impacted SMA100 version 9.0.0.3 and earlier.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Nov 3, 2021 | May 3, 2022 | Known |
| Industry KEV feed | Nov 3, 2021 | May 3, 2022 | Known |
| CIRCL KEV | Nov 3, 2021 | May 3, 2022 | Known |
| ENISA EUVD | Nov 3, 2021 | 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
Nov 3, 2021
Added to Industry KEV feed
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Publicly disclosed
Mar 9, 2023
Last updated
Aug 12, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisoryhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0016
- 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.
Vulnerability in SonicWall SMA100 allow unauthenticated user to gain read-only access to unauthorized resources.
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 Nov 3, 2021 and is known to be used in ransomware campaigns.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 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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