CVE-2020-36193

CRITICALNVD 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 71%CVSS: 7.5Exploit: cisa kev · ssvc active · epss top5pct · epss highExposed: 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 PROB
71%
EPSS %ILE
99%
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 (1:1.10.9+submodules+notgz-1ubuntu0.20.04.2) @ focal2026-09-19ubuntu
redhatphp-pear-1:1.9.4-23.el7_92022-11-02redhat
redhatphp:7.4-8040020220907095003.d7c090452022-09-15redhat
redhatphp:7.4-8060020220907094815.5caa48ff2022-09-15redhat

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

(8 across 7 ecosystems)
Debian:9(2)
PackageVulnerable rangeFixed inDependents
drupal77.52-2 ... 7.52-2+deb9u9 (14 versions)7.52-2+deb9u14—
php-pear1:1.10.1+submodules+notgz-9, 1:1.10.1+submodules+notgz-9+deb9u1, 1:1.10.1+submodules+notgz-9+deb9u21:1.10.1+submodules+notgz-9+deb9u3—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
php-pear1:1.10.6+submodules+notgz-1.1, 1:1.10.6+submodules+notgz-1.1+deb10u11:1.10.6+submodules+notgz-1.1+deb10u2—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
php-pear—1:1.10.12+submodules+notgz+20210212-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
php-pear—1:1.10.12+submodules+notgz+20210212-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
php-pear—1:1.10.12+submodules+notgz+20210212-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
php-pear—1:1.10.12+submodules+notgz+20210212-1—
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 55× in last 7d / 226× 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 792 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2020-36193?
CVE-2020-36193 is a critical 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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