What is CVE-2021-20217?

CVE-2021-20217 is a high-severity vulnerability in Privoxy, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2021-03-25.

How severe is CVE-2021-20217?

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

Is CVE-2021-20217 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Privoxy

CVE-2021-20217

A flaw was found in Privoxy in versions before 3.0.31. An assertion failure triggered by a crafted CGI request may lead to denial of service. The highest threat from this vulnerability is to system availability.

EPSS: 0.014 (69.1th 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:N/I:N/A:H.

Affected products

Privoxy
N/a Privoxy — versions privoxy 3.0.31

Weakness classification (CWE)

CWE-617 — Reachable Assertion

Public proof-of-concept exploits

MegaManSec/privoxy

References

secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2021-20217?: CVE-2021-20217 is a high-severity vulnerability in Privoxy, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2021-03-25.
How severe is CVE-2021-20217?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-20217 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.