Vulnerability · Published Dec 8, 2021 · Assigned by sonicwall
CVE-2021-20042
Critical 9.8
In plain English
A critical-severity security flaw in SonicWall SMA100 from SonicWall. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.7% (higher than 90% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)3.7%top 10.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An unauthenticated remote attacker can use SMA 100 as an unintended proxy or intermediary undetectable proxy to bypass firewall rules. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SonicWall | SonicWall SMA100 | 9.0.0.11-31sv and earlier10.2.0.8-37sv and earlier10.2.1.1-19sv and earlier10.2.1.2-24sv and earlier |
Weakness: CWE-441
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 x_refsource_CONFIRM