CVE-2021-20035
Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Apr 16, 2025
- US federal agencies must remediate it by May 7, 2025 (BOD 22-01)
- First attack observed 1295 days after disclosure
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Source: CISA KEV · Jan 20, 2026 Jul 18, 2025 Jul 16, 2025 Apr 17, 2025 Apr 16, 2025 Apr 15, 2025
CVSS score6.5 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness type (CWE)CWE-78, CWE-78
Vendorssonicwall
Affected products
| Vendors | Prodotto | Versioni |
|---|---|---|
| sonicwall | sma 200 firmware | < 9.0.0.11-31sv |
| sonicwall | sma 200 | - |
| sonicwall | sma 210 firmware | < 9.0.0.11-31sv |
| sonicwall | sma 210 | - |
| sonicwall | sma 400 firmware | < 9.0.0.11-31sv |
| sonicwall | sma 400 | - |
| sonicwall | sma 410 firmware | < 9.0.0.11-31sv |
| sonicwall | sma 410 | - |
| sonicwall | sma 500v | < 9.0.0.11-31sv |
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This product uses the NVD API but is not endorsed or certified by the NVD.