CVE Tools

Privoxy

29 CVEs tracked. None of them is in CISA KEV.

This hub aggregates every CVE we track for Privoxy, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.

Privoxy CVEs per month

Oct 2024 to Sep 2026. Point at a month, or focus the strip and use the arrow keys.
Privoxy CVEs per month
MonthCVEs
2024-100
2024-110
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-090
2025-100
2025-110
2025-120
2026-010
2026-020
2026-030
2026-040
2026-050
2026-060
2026-070
2026-080
2026-090

Severity

How the 29 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • High2276%
  • Medium724%

Latest CVEs

The 15 most recently published vulnerabilities affecting Privoxy.

  1. CVE-2021-44543An XSS vulnerability was found in Privoxy which was fixed in cgi_error_no_template() by encode the template name when Privoxy is configured to servce the user-manual itself.6.1
  2. CVE-2021-44542A memory leak vulnerability was found in Privoxy when handling errors.7.5
  3. CVE-2021-44541A vulnerability was found in Privoxy which was fixed in process_encrypted_request_headers() by freeing header memory when failing to get the request destination.7.5
  4. CVE-2021-44540A vulnerability was found in Privoxy which was fixed in get_url_spec_param() by freeing memory of compiled pattern spec before bailing.7.5
  5. CVE-2021-20209A memory leak vulnerability was found in Privoxy before 3.0.29 in the show-status CGI handler when no action files are configured.7.5
  6. CVE-2021-20217A 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...7.5
  7. CVE-2021-20216A flaw was found in Privoxy in versions before 3.0.31. A memory leak that occurs when decompression fails unexpectedly may lead to a denial of service. The highest threat from this vulnerability is...7.5
  8. CVE-2021-20215A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the show-status CGI handler when memory allocations fail can lead to a system crash.7.5
  9. CVE-2021-20214A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the client-tags CGI handler when client tags are configured and memory allocations fail can lead to a system crash.7.5
  10. CVE-2021-20213A 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 desti...7.5
  11. CVE-2021-20212A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is skipped due to a pcre error leading to a system crash.7.5
  12. CVE-2021-20211A flaw was found in Privoxy in versions before 3.0.29. Memory leak when client tags are active can cause a system crash.7.5
  13. CVE-2021-20210A flaw was found in Privoxy in versions before 3.0.29. Memory leak in the show-status CGI handler when no filter files are configured can lead to a system crash.7.5
  14. CVE-2020-35502A flaw was found in Privoxy in versions before 3.0.29. Memory leaks when a response is buffered and the buffer limit is reached or Privoxy is running out of memory can lead to a system crash.7.5
  15. CVE-2021-20276A flaw was found in privoxy before 3.0.32. Invalid memory access with an invalid pattern passed to pcre_compile() may lead to denial of service.7.5

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