What’s Vulnerable › Vulnerabilities

CVE-2021-20274

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-09 · updated 2026-06-17
• Weakness: CWE-476

Description

A flaw was found in privoxy before 3.0.32. A crash may occur due a NULL-pointer dereference when the socks server misbehaves.

Affected products

• privoxy: before 3.0.32 — fixed in 3.0.32

How to fix

Upgrade to a fixed version: privoxy 3.0.32. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1936662
• https://security.gentoo.org/glsa/202107-16
• https://www.privoxy.org/announce.txt
• https://bugzilla.redhat.com/show_bug.cgi?id=1936662
• https://security.gentoo.org/glsa/202107-16
• https://www.privoxy.org/announce.txt

Get alerted when CVE-2021-20274 or the next vulnerability affects your stack