What is CVE-2021-20019?

CVE-2021-20019 is a high-severity vulnerability in Sonicwall Sonicos, classified under Information Disclosure. CVSS score: 7.5/10. Published 2021-06-23.

How severe is CVE-2021-20019?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Sonicwall Sonicos

CVE-2021-20019

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.

Vulnerability class: Information Disclosure

EPSS: 0.014 (69.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Sonicwall Sonicos — versions SonicOS - 6.5.4.7-83n, 6.0.5.3-94o, SonicOS - 7.0.0.375 and earlier
Sonicwall Sonicosv — versions 6.5.4.4-44v-21-955

Weakness classification (CWE)

References

PSIRT@sonicwall.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20019?: CVE-2021-20019 is a high-severity vulnerability in Sonicwall Sonicos, classified under Information Disclosure. CVSS score: 7.5/10. Published 2021-06-23.
How severe is CVE-2021-20019?: High severity. CVSS v3 base score is 7.5 out of 10.