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TI-2021-03354 Aliases CVE-2021-20035GHSA-g24w-7v2m-52xh

OS command injection in SonicWall SMA100

Priority CRITICAL 88Exploited in the wildCWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2025-04-16CISA due date 2025-05-07
EPSS 0.04406 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SonicWallSMA100up to 9.0.0.10-28sv; up to 10.2.0.7-34sv; up to 10.2.1.0-17sv—No fix listedCNA
  • SMA100 VendorSonicWall Affected up to 9.0.0.10-28sv; up to 10.2.0.7-34sv; up to 10.2.1.0-17sv Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:*before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
cpe:2.3:o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:*before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
cpe:2.3:o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:*before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
cpe:2.3:o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:*before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
cpe:2.3:a:sonicwall:sma_500v:*:*:*:*:*:*:*:*before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19svVulnerableSonicWall
  • cpe:2.3:o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* Versions before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19sv Vulnerable ·SonicWall
  • cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
  • cpe:2.3:o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* Versions before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19sv Vulnerable ·SonicWall
  • cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
  • cpe:2.3:o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* Versions before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19sv Vulnerable ·SonicWall
  • cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
  • cpe:2.3:o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* Versions before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19sv Vulnerable ·SonicWall
  • cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
  • cpe:2.3:a:sonicwall:sma_500v:*:*:*:*:*:*:*:* Versions before 9.0.0.11-31sv; 10.2.0.0 to before 10.2.0.8-37sv; 10.2.1.0 to before 10.2.1.1-19sv Vulnerable ·SonicWall

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2025-04-16 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2021-20035
  3. 2026-10-03 Alias added: GHSA-g24w-7v2m-52xh

References

Advisory 1

  • TI-2021-03356 Stack-based buffer overflow in SonicWall SMA100 KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-03337 SQL injection in SonicWall SMA100 KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-25716 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. KEVCVSS 3.1CRITICAL 9.1
  • TI-2023-23752 OS command injection in SonicWall SMA100 KEVCVSS 3.1HIGH 7.2
  • TI-2021-03357 OS command injection in SonicWall SMA100 CVSS 3.1HIGH 8.8
  • TI-2021-03353 Improper access control in SonicWall SMA100 CVSS 3.1CRITICAL 9.1
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences