Which products and versions are affected by CVE-2020-28949?

Affected: Drupal versions >= 7.0.0; Archive Tar (PHP); Debian Linux versions 10.0, 9.0, among others. The full list is in the CVE brief.

Is CVE-2020-28949 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 25, 2022 and is known to be used in ransomware campaigns.

Is CVE-2020-28949 in the CISA KEV catalog?

Yes. It was added on Aug 25, 2022 with a federal remediation due date of Sep 15, 2022.

Is there a public exploit for CVE-2020-28949?

Public exploit code is available.

Is there a fix for CVE-2020-28949?

Fixed versions are available, including apcu-panel 5.1.18-1.module+el8.3.0+7685+72d70b58, Drupal 7.75.0, Drupal 8.9.10.

How urgently should CVE-2020-28949 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2020-28949

HighExploitedPublic exploit

Multiple vulnerabilities through filename manipulation in Archive_Tar

Published Apr 22, 2021 · Updated Sep 19, 2026 · Also known as DEBIAN-CVE-2020-28949, GHSA-75c5-f4gw-38r9, UBUNTU-CVE-2020-28949

Key Facts

Patch immediately

CVE-2020-28949 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Drupal, Archive Tar (PHP), Debian Linux and 22 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 25, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
EPSS estimates a 85% probability of exploitation in the next 30 days.
Fixed versions are available, including apcu-panel 5.1.18-1.module+el8.3.0+7685+72d70b58, Drupal 7.75.0, Drupal 8.9.10.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.8

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

85%

Higher than 99.7% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2020-28949 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Aug 25, 2022	Sep 15, 2022	Not reported
Industry KEV feed	Aug 25, 2022	Sep 15, 2022	Known
CIRCL KEV	Aug 25, 2022	Sep 15, 2022	Not reported
ENISA EUVD	Aug 25, 2022	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

94 affected entries in total

Product	Affected versions	Fixed in
DrupalDrupal	>= 7.0.0	7.75
Archive TarPHP	See advisory	1.4.12
Debian LinuxDebian	10.0, 9.0	n/a
FedoraFedoraproject	32, 33, 34, 35	n/a
drupal7alpine	See advisory	7.75-r0

20 more affected products in the full CVE brief

Patched Releases

apcu-panel

5.1.18-1.module+el8.3.0+7685+72d70b58

Drupal

7.75.0, 8.9.10, 9.0.9, 7.75

drupal/core

8.8.12, 8.9.10, 9.0.9

drupal7

7.26-1ubuntu0.1+esm2, 7.44-1ubuntu1~16.04.0+esm2, 7.52-2+deb9u13, 7.75-r0

libzip

1.6.1-1.module_el8.6.0+2750+78feabcb, 1.6.1-1.module+el8.3.0+7685+72d70b58, 1.6.1-1.module+el8.6.0+789+2130c178

libzip-devel

1.6.1-1.module+el8.3.0+7685+72d70b58

libzip-tools

1.6.1-1.module+el8.3.0+7685+72d70b58

pear/archive_tar

1.4.11

php

7.4.19-4.module_el8.6.0+3238+624bf8b8, 7.4.19-4.module+el8.6.0+1006+0d5a469f, 7.4.19-4.module+el8.6.0+20746+7a133c42

Archive Tar

1.4.12

php-bcmath