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CVE-2020-9664

34
FAUCET Score

CVE-2020-9664 is a critical PHP object injection vulnerability affecting Magento versions 1.14.4.5 and earlier, and 1.9.4.5 and earlier. With a CVSS score of 9.8, this vulnerability allows for unauthenticated, low-complexity remote exploitation, potentially leading to arbitrary code execution and full compromise of the affected system. While no active exploitation, public exploit code, or significant community discussion has been observed, its high severity and ease of exploitation warrant immediate patching for vulnerable Magento instances.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.9.4.5CPE matchmatch criteria
cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*
<= 1.14.4.5CPE matchmatch criteria
cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.38%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0838 is in the 90th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

adobevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-337c-3rch-q35jcritical

Magento php object injection vulnerability

May 24, 2022

References

helpx.adobe.com / security/products/magento/apsb20-41.html
Vendor Advisory