How severe is CVE-2020-36193?

CVE-2020-36193 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-36193 being actively exploited?

Yes. CVE-2020-36193 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-08-25, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-36193?

CVE-2020-36193 primarily affects Php Archive Tar. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-36193?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-36193 have an EU (EUVD) identifier?

Yes. CVE-2020-36193 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-0874. It is also flagged as exploited in the EUVD (since 2022-08-25).

When was CVE-2020-36193 published?

CVE-2020-36193 was published on 2021-01-18 and last updated on 2026-06-17.

CVE-2020-36193

CVE-2020-36193 is a high-severity vulnerability in Php Archive Tar with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-08-25). The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 71% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-08-25)
EU (EUVD) id: EUVD-2021-0874
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-08-25)
Weakness: CWE-22
Affected product: Php Archive Tar
Published: 2021-01-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-36193?: 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.
How severe is CVE-2020-36193?: CVE-2020-36193 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-36193 being actively exploited?: Yes. CVE-2020-36193 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-08-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-36193?: CVE-2020-36193 primarily affects Php Archive Tar. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-36193?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-36193 have an EU (EUVD) identifier?: Yes. CVE-2020-36193 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-0874. It is also flagged as exploited in the EUVD (since 2022-08-25).
When was CVE-2020-36193 published?: CVE-2020-36193 was published on 2021-01-18 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:php:archive_tar:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*

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