CVE-2020-36193
7.5, high Known exploitedPEAR Archive_Tar Improper Link Resolution Vulnerability
- CVSS
- 7.5, high high CVSS v3.1
- EPSS, next 30 days
- 71% higher than 99.3% of scored CVEs
- Exploitation
- Confirmed in the wild
- Published
- 18 Jan 20215 years ago
Known exploited
CISA added this to the Known Exploited Vulnerabilities Catalog on 25 Aug 2022. US federal agencies had to remediate by 15 Sept 2022, a deadline that has passed.
Required action. Apply updates per vendor instructions.
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.
Details
- Vendor
- PEAR and 3 more
- Product
- Archive Tar
- Weakness
- CWE-22 (opens in a new tab)
- Status
- Analyzed
- Updated
- 17 Jun 2026
- Assigner
- cve@mitre.org
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References 11
Patches and fixes 1
Advisories 5
- lists.debian.org /debian-lts-announce/2021/01/msg00018.html (opens in a new tab)
- lists.debian.org /debian-lts-announce/2021/04/msg00007.html (opens in a new tab)
- security.gentoo.org /glsa/202101-23 (opens in a new tab)
- debian.org /security/2021/dsa-4894 (opens in a new tab)
- drupal.org /sa-core-2021-001 (opens in a new tab)
Other references 5
- lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/ (opens in a new tab)
- lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2/ (opens in a new tab)
- lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/ (opens in a new tab)
- lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH/ (opens in a new tab)
- cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-36193 (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Other PEAR CVEs
Every PEAR CVE we holdSame vendor in what we hold, not a known link between the flaws.
- CVE-2020-28949 PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability KEV EPSS 85% 7.8, high
Beyond this page
Is CVE-2020-36193 in your network?
This page tells you how dangerous CVE-2020-36193 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
CVE-2020-36193 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.
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EXYS7600 OCELOT
Find it before attackers do
Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2020-36193 comes with the devices to patch.
Learn more about EXYS7600 OCELOT -
EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
Learn more about EXYS7950 KONDRA
Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.