OS command injection in SonicWall NSM On-Prem
Priority MEDIUM 52CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
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.
Why it matters now
EPSS 0.11642 96th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SonicWall | SonicWall NSM On-Prem | NSM On-Prem 2.2.0-R10 and earlier | — | No fix listed | CNA |
- SonicWall NSM On-Prem VendorSonicWall Affected NSM On-Prem 2.2.0-R10 and earlier Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sonicwall:network_security_manager:*:*:*:*:on-premises:*:*:* | before 2.2.0 | Vulnerable | SonicWall |
| cpe:2.3:a:sonicwall:network_security_manager:2.2.0:-:*:*:on-premises:*:*:* | 2.2.0 | Vulnerable | SonicWall |
| cpe:2.3:a:sonicwall:network_security_manager:2.2.0:r10:*:*:on-premises:*:*:* | 2.2.0 r10 | Vulnerable | SonicWall |
- cpe:2.3:a:sonicwall:network_security_manager:*:*:*:*:on-premises:*:*:* Versions before 2.2.0 Vulnerable ·SonicWall
- cpe:2.3:a:sonicwall:network_security_manager:2.2.0:-:*:*:on-premises:*:*:* Versions 2.2.0 Vulnerable ·SonicWall
- cpe:2.3:a:sonicwall:network_security_manager:2.2.0:r10:*:*:on-premises:*:*:* Versions 2.2.0 r10 Vulnerable ·SonicWall
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20026
- 2026-10-03 Alias added: GHSA-24h9-xh6m-x5jf
References
More SonicWall Network Security Manager vulnerabilities
- TI-2021-20437 Apache Log4j2 does not always protect from infinite recursion in lookup evaluation CVSS 3.1MEDIUM 5.9
Sources
- CVE-2021-20026 · CVE Program
- CVE-2021-20026 · NVD
- FIRST EPSS
- GHSA-24h9-xh6m-x5jf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences