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TI-2021-03360 Aliases CVE-2021-20042GHSA-7jhp-ff4f-8fx7

An unauthenticated remote attacker can use SMA 100 as an unintended proxy or intermediary…

Priority MEDIUM 48CWE-441Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An unauthenticated remote attacker can use SMA 100 as an unintended proxy or intermediary undetectable proxy to bypass firewall rules. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

Why it matters now

EPSS 0.03682 89th 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

VendorProductAffected versionsFixed inStatusSource
SonicWallSonicWall SMA100up to 9.0.0.11-31sv; up to 10.2.0.8-37sv; up to 10.2.1.1-19sv; up to 10.2.1.2-24sv—No fix listedCNA
  • SonicWall SMA100 VendorSonicWall Affected up to 9.0.0.11-31sv; up to 10.2.0.8-37sv; up to 10.2.1.1-19sv; up to 10.2.1.2-24sv Fixed in — No fix listed CNA

CPE configurations NVD · 20

CPEVersionsRoleVendor
cpe:2.3:o:sonicwall:sma_200_firmware:9.0.0.11-31sv:*:*:*:*:*:*:*9.0.0.11-31svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_200_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*10.2.0.8-37svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_200_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*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:9.0.0.11-31sv:*:*:*:*:*:*:*9.0.0.11-31svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_210_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*10.2.0.8-37svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_210_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
cpe:2.3:o:sonicwall:sma_410_firmware:9.0.0.11-31sv:*:*:*:*:*:*:*9.0.0.11-31svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_410_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*10.2.0.8-37svVulnerableSonicWall
  • cpe:2.3:o:sonicwall:sma_200_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* Versions 9.0.0.11-31sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_200_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* Versions 10.2.0.8-37sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_200_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* Versions 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:9.0.0.11-31sv:*:*:*:*:*:*:* Versions 9.0.0.11-31sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_210_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* Versions 10.2.0.8-37sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_210_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* Versions 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_410_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* Versions 9.0.0.11-31sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_410_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* Versions 10.2.0.8-37sv Vulnerable ·SonicWall
Show 10 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:sonicwall:sma_410_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
cpe:2.3:o:sonicwall:sma_400_firmware:9.0.0.11-31sv:*:*:*:*:*:*:*9.0.0.11-31svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_400_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*10.2.0.8-37svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_400_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
cpe:2.3:o:sonicwall:sma_500v_firmware:9.0.0.11-31sv:*:*:*:*:*:*:*9.0.0.11-31svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*10.2.0.8-37svVulnerableSonicWall
cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*10.2.1.1-19svVulnerableSonicWall
cpe:2.3:h:sonicwall:sma_500v:-:*:*:*:*:*:*:*not specified by NVDRunning onSonicWall
  • cpe:2.3:o:sonicwall:sma_410_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* Versions 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:o:sonicwall:sma_400_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* Versions 9.0.0.11-31sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_400_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* Versions 10.2.0.8-37sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_400_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* Versions 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_500v_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* Versions 9.0.0.11-31sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* Versions 10.2.0.8-37sv Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* Versions 10.2.1.1-19sv Vulnerable ·SonicWall
  • cpe:2.3:h:sonicwall:sma_500v:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20042
  2. 2026-10-03 Alias added: GHSA-7jhp-ff4f-8fx7

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-2021-03354 OS command injection in SonicWall SMA100 KEVCVSS 3.1MEDIUM 6.5
  • TI-2021-03357 OS command injection in SonicWall SMA100 CVSS 3.1HIGH 8.8
See all 26 →

Sources

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