CVE-2021-20026 in the critical feed json
A vulnerability in the SonicWall NSM On-Prem product allows an authenticated attacker to perform OS command injection using a crafted HTTP…
published 2021-05-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7489
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 11.6%
- EPSS 11.6% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
A vulnerability in the SonicWall NSM On-Prem product allows an authenticated attacker to perform OS command injection using a crafted HTTP request. This vulnerability affects NSM On-Prem 2.2.0-R10 and earlier versions.
Patch / fix
- sonicwall network_security_manager 2.2.0
Exploit prediction
11.64% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Affected products
- SonicWall SonicWall NSM On-Prem
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
psirt.global.sonicwall.com
/vuln-detail/SNWLID-2021-0014
vendor-advisory
Sources
- CVE List CVE-2021-20026
- NVD CVE-2021-20026
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