Vulnerability · Published Dec 8, 2021 · Assigned by sonicwall
CVE-2021-20041
High 7.5
In plain English
A high-severity infinite loop 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 21.2% (higher than 98% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)21.2%top 2.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An unauthenticated and remote adversary can consume all of the device's CPU due to crafted HTTP requests sent to SMA100 /fileshare/sonicfiles/sonicfiles resulting in a loop with unreachable exit condition. 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-835
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 x_refsource_CONFIRM