CVE-2021-20017: sonicwall sma100_firmware OS Command Injection
CVSS: 9.0v2.0HighModified
Published 13-03-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-20017 is a high (CVSS 9.0) OS Command Injection vulnerability in sonicwall sma100_firmware. EPSS estimates a 1.89% chance of exploitation in the next 30 days, higher than 79.2% of scored vulnerabilities.
CVSS score
9.0/10
010
High · v2.0 (NVD)EPSS score
1.89%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-03-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A post-authenticated command injection vulnerability in SonicWall SMA100 allows an authenticated attacker to execute OS commands as a 'nobody' user. This vulnerability impacts SMA100 version 10.2.0.5 and earlier.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 9.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
1.89%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
+0.04 pp
From 1.85% on 18-09-2026
18-09-202618-10-2026
EPSS score1.89%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Sonicwall1 product
- sma100_firmware10.2.0.5 and earlier | ≤ 10.2.0.5
1 vendor · 1 product