CVE-2021-20213

7.5 highEPSS 1.6%

High (7.5) in privoxy privoxy. EPSS 1.6% chance of exploitation in the next 30 days.

A flaw was found in Privoxy in versions before 3.0.29. Dereference of a NULL-pointer that could result in a crash if accept-intercepted-requests was enabled, Privoxy failed to get the request destination from the Host header and a memory allocation failed.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2021-03-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

privoxy:privoxy

References

https://bugzilla.redhat.com/show_bug.cgi?id=1928739
https://security.gentoo.org/glsa/202107-16
https://www.privoxy.org/3.0.29/user-manual/whatsnew.html
https://bugzilla.redhat.com/show_bug.cgi?id=1928739
https://security.gentoo.org/glsa/202107-16

Check your stack JSON