CVE-2021-20016
Last modified
CVE-2021-20016 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.. CISA has confirmed active exploitation in the wild. EPSS estimates a 36.95% chance of exploitation in the next 30 days.
Description
A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sonicwall | Sma 100 Firmware | >= 10.0.0.0, < 10.2.0.5-d-29sv |
| Sonicwall | Sma 200 Firmware | All versions |
| Sonicwall | Sma 210 Firmware | All versions |
| Sonicwall | Sma 400 Firmware | All versions |
| Sonicwall | Sma 410 Firmware | All versions |
| Sonicwall | Sma 500v | All versions |
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001Mitigation, Vendor Advisory
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001Mitigation, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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