No exploitation reportedFix available

CVE-2020-9580

Q: Is CVE-2020-9580 actively exploited?

Active exploitation of CVE-2020-9580 has not been confirmed. Its EPSS score was 5.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2020-9580?

CVE-2020-9580 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2020-06-26

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a security mitigation bypass vulnerability. Successful exploitation could lead to arbitrary code execution.

Timeline

dates in UTC

2020-06-2621:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-9580?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-9580?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Magento

Branch	Affected	Fixed in	Source
1.9	≤ 1.9.4.4	no fix published	NVD
1.14	≤ 1.14.4.4	no fix published	NVD
2.2	≥ 2.2.0, ≤ 2.2.11	no fix published	NVD
2.3	≥ 2.3.0, ≤ 2.3.4	no fix published	NVD

magento

Branch	Affected	Fixed in	Source
2.3	≥ 2.3.0, < 2.3.5	2.3.5	OSV
2.2	≥ 2.2.0, < 2.2.12	2.2.12	OSV

magento/community-edition

Branch	Affected	Fixed in	Source
2.3	≥ 2.3.0, < 2.3.4-p2	2.3.4-p2	OSV
2.2	≤ 2.2.11	no fix published	OSV

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

helpx.adobe.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
FIRST EPSSEPSS score5.0 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2020-06-26
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-9580?

Is CVE-2020-9580 actively exploited?

Active exploitation of CVE-2020-9580 has not been confirmed. Its EPSS score was 5.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-9580?

CVE-2020-9580 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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