CVE-2020-36193

HIGHNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-08-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 4 sources updated this weekExploited in the wild
7.5
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 71%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
99.3%
KEV
⚠ Exploited

Published

January 18, 2021

Last Modified

November 7, 2025

Advisory Details (10)

Auto-updated Jun 5, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: github_commit.
generic🔴 Active Exploitation

Drupal core - Critical - Third-party libraries - SA-CORE-2021-001 | Drupal.org

https://www.drupal.org/sa-core-2021-001
generic

[SECURITY] [DSA 4894-1] php-pear security update

https://www.debian.org/security/2021/dsa-4894
generic

PEAR Archive_Tar: Directory traversal (GLSA 202101-23) — Gentoo security

https://security.gentoo.org/glsa/202101-23
generic

[SECURITY] Fedora 32 Update: php-pear-1.10.12-5.fc32 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH/
generic

[SECURITY] Fedora 34 Update: drupal7-7.82-1.fc34 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/
generic

[SECURITY] Fedora 33 Update: php-pear-1.10.12-5.fc33 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2/
generic

[SECURITY] Fedora 35 Update: drupal7-7.82-1.fc35 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/
generic Patch Available

[SECURITY] [DLA 2621-1] php-pear security update

https://lists.debian.org/debian-lts-announce/2021/04/msg00007.html
generic

[SECURITY] [DLA-2530-1] drupal7 security update

https://lists.debian.org/debian-lts-announce/2021/01/msg00018.html
github_commit Patch Available

commit cde460582ff3 (pear/Archive_Tar)

Patch available: pear/Archive_Tar 1.4.13 (contains commit cde460582ff3)

https://github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuphp-pear (1:1.10.1+submodules+notgz-6ubuntu0.3) @ xenial2026-07-22ubuntu
redhatphp-pear-1:1.9.4-23.el7_92022-11-02redhat
redhatphp:7.4-8060020220907094815.5caa48ff2022-09-15redhat
redhatphp:7.4-8040020220907095003.d7c090452022-09-15redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
pear/archive_tar1.3.11 ... 1.4.9 (19 versions)1.4.13—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 50× in last 7d / 205× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 380 total refreshes for this CVE.

  1. 2026-07-23 01:53 UTCEG score recompute
  2. 2026-07-22 21:43 UTCEG score recompute
  3. 2026-07-22 21:43 UTCVendor advisory
  4. 2026-07-22 19:40 UTCCISA KEV update
  5. 2026-07-22 17:11 UTCEG score recompute
  6. 2026-07-22 17:11 UTCVendor advisory
  7. 2026-07-22 14:05 UTCEPSS rescore
  8. 2026-07-22 12:55 UTCVendor advisory
  9. 2026-07-22 08:41 UTCVendor advisory
  10. 2026-07-22 04:26 UTCVendor advisory
  11. 2026-07-22 00:08 UTCVendor advisory
  12. 2026-07-21 18:20 UTCVendor advisory
  13. 2026-07-21 14:37 UTCCISA KEV update
  14. 2026-07-21 14:06 UTCVendor advisory
  15. 2026-07-21 09:50 UTCVendor advisory
  16. 2026-07-21 05:33 UTCVendor advisory
  17. 2026-07-21 01:18 UTCVendor advisory
  18. 2026-07-20 21:03 UTCEG score recompute
  19. 2026-07-20 21:03 UTCVendor advisory
  20. 2026-07-20 17:04 UTCEPSS rescore
  21. 2026-07-20 17:04 UTCEPSS rescore
  22. 2026-07-20 16:47 UTCVendor advisory
  23. 2026-07-20 12:32 UTCVendor advisory
  24. 2026-07-20 08:17 UTCVendor advisory
  25. 2026-07-20 04:02 UTCVendor advisory
Show 75 more
  1. 2026-07-19 23:48 UTCVendor advisory
  2. 2026-07-19 19:33 UTCVendor advisory
  3. 2026-07-19 15:19 UTCVendor advisory
  4. 2026-07-19 11:05 UTCVendor advisory
  5. 2026-07-19 06:50 UTCVendor advisory
  6. 2026-07-19 02:35 UTCEG score recompute
  7. 2026-07-19 02:35 UTCVendor advisory
  8. 2026-07-19 02:26 UTCEPSS rescore
  9. 2026-07-19 02:26 UTCEPSS rescore
  10. 2026-07-18 22:20 UTCVendor advisory
  11. 2026-07-18 18:05 UTCVendor advisory
  12. 2026-07-18 13:49 UTCVendor advisory
  13. 2026-07-18 09:34 UTCVendor advisory
  14. 2026-07-18 05:20 UTCVendor advisory
  15. 2026-07-18 01:05 UTCVendor advisory
  16. 2026-07-17 20:51 UTCVendor advisory
  17. 2026-07-17 16:36 UTCVendor advisory
  18. 2026-07-17 12:21 UTCVendor advisory
  19. 2026-07-17 08:06 UTCEG score recompute
  20. 2026-07-17 08:06 UTCVendor advisory
  21. 2026-07-17 03:52 UTCVendor advisory
  22. 2026-07-16 23:37 UTCVendor advisory
  23. 2026-07-16 19:22 UTCVendor advisory
  24. 2026-07-16 17:04 UTCCISA KEV update
  25. 2026-07-16 15:07 UTCVendor advisory
  26. 2026-07-16 10:53 UTCVendor advisory
  27. 2026-07-16 06:38 UTCVendor advisory
  28. 2026-07-16 02:24 UTCVendor advisory
  29. 2026-07-15 22:09 UTCVendor advisory
  30. 2026-07-15 17:54 UTCVendor advisory
  31. 2026-07-15 16:55 UTCEPSS rescore
  32. 2026-07-15 16:55 UTCEPSS rescore
  33. 2026-07-15 16:49 UTCCISA KEV update
  34. 2026-07-15 15:04 UTCCISA KEV update
  35. 2026-07-15 13:39 UTCVendor advisory
  36. 2026-07-15 09:25 UTCVendor advisory
  37. 2026-07-15 05:09 UTCVendor advisory
  38. 2026-07-15 00:54 UTCVendor advisory
  39. 2026-07-14 20:39 UTCVendor advisory
  40. 2026-07-14 18:05 UTCCISA KEV update
  41. 2026-07-14 16:24 UTCVendor advisory
  42. 2026-07-14 12:09 UTCVendor advisory
  43. 2026-07-14 07:54 UTCVendor advisory
  44. 2026-07-14 03:38 UTCVendor advisory
  45. 2026-07-13 23:24 UTCVendor advisory
  46. 2026-07-13 22:27 UTCEPSS rescore
  47. 2026-07-13 22:27 UTCEPSS rescore
  48. 2026-07-13 19:09 UTCVendor advisory
  49. 2026-07-13 17:07 UTCCISA KEV update
  50. 2026-07-13 14:54 UTCVendor advisory
  51. 2026-07-13 10:39 UTCVendor advisory
  52. 2026-07-13 06:22 UTCVendor advisory
  53. 2026-07-13 02:07 UTCVendor advisory
  54. 2026-07-12 21:53 UTCVendor advisory
  55. 2026-07-12 17:38 UTCVendor advisory
  56. 2026-07-12 13:23 UTCVendor advisory
  57. 2026-07-12 09:08 UTCVendor advisory
  58. 2026-07-12 05:44 UTCEPSS rescore
  59. 2026-07-12 04:53 UTCVendor advisory
  60. 2026-07-12 00:38 UTCVendor advisory
  61. 2026-07-11 20:23 UTCVendor advisory
  62. 2026-07-11 16:08 UTCVendor advisory
  63. 2026-07-11 11:53 UTCVendor advisory
  64. 2026-07-11 07:38 UTCVendor advisory
  65. 2026-07-11 03:24 UTCVendor advisory
  66. 2026-07-10 23:09 UTCVendor advisory
  67. 2026-07-10 18:53 UTCVendor advisory
  68. 2026-07-10 17:52 UTCCISA KEV update
  69. 2026-07-10 14:38 UTCVendor advisory
  70. 2026-07-10 10:24 UTCVendor advisory
  71. 2026-07-10 06:10 UTCVendor advisory
  72. 2026-07-10 01:55 UTCVendor advisory
  73. 2026-07-09 21:41 UTCVendor advisory
  74. 2026-07-09 19:07 UTCEPSS rescore
  75. 2026-07-09 17:25 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2020-36193?
CVE-2020-36193 is a high vulnerability published on January 18, 2021. Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.
When was CVE-2020-36193 disclosed?
CVE-2020-36193 was first published in the National Vulnerability Database on January 18, 2021, with the most recent update on November 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-36193 actively exploited?
Yes. CISA added CVE-2020-36193 to the Known Exploited Vulnerabilities catalog on August 25, 2022, affecting PEAR Archive_Tar. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-36193?
CVE-2020-36193 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2020-36193?
CVE-2020-36193 affects PEAR Archive_Tar. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2020-36193?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-36193, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-36193

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