CVE-2021-20019
HIGH · CVSS 7.5EPSS 1.4%EU EUVD
A vulnerability in SonicOS where the HTTP server response leaks partial memory by sending a crafted HTTP request, this can potentially lead to an internal sensitive data disclosure vulnerability.
Key facts
- CVSS score
- 7.5 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
- CWE-200
- EPSS score
- 1.4% (72th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2021-7482)
- Published
- June 23, 2021
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2021-7482 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.
View on the EU Vulnerability DatabaseAffected products
- sonicwall / sonicos
- sonicwall / sonicos
- sonicwall / sonicos
- sonicwall / sonicos
- sonicwall / sonicosv
Certified products that may be affected
3 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- SonicWall SonicOS/X v7.0.1 with VPN and IPS on NSsp 15700 - SonicWALL, Inc - Common Criteria CCEVS-VR-VID-11528-2025 - active
- Sonicwall SonicOS/X v7.0.1 with VPN and IPS on TZ, NSa, NSsp, and NSv Appliances - SonicWALL, Inc - Common Criteria CCEVS-VR-VID-11473-2025 - active
- SonicWall SonicOS Enhanced V6.5.4 with VPN and IPS on TZ and SOHO Appliances - SonicWALL, Inc - Common Criteria CCEVS-VR-11028-2020 - archived
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0006(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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