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CVE-2020-9633

34
FAUCET Score

CVE-2020-9633 is a critical use-after-free vulnerability affecting Adobe Flash Player Desktop Runtime (32.0.0.371 and earlier), Flash Player for Google Chrome (32.0.0.371 and earlier), and Flash Player for Microsoft Edge and Internet Explorer (32.0.0.330 and earlier). This flaw, rated 9.8 CRITICAL on CVSS, allows for unauthenticated, low-complexity network attacks that could lead to arbitrary code execution with high impact on confidentiality, integrity, and availability. While there are no known public exploits or active exploitation listed in KEV, the vulnerability has garnered significant community discussion and media coverage, indicating its importance. Organizations should prioritize patching affected Adobe Flash Player installations across Windows, macOS, and Linux systems.

Impacted Technologies

VendorProductVersion(s)CPE
<= 32.0.0.371CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*
<= 32.0.0.371CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:*
<= 32.0.0.330CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*
<= 32.0.0.330CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer_11:*:*

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
7.56%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0756 is in the 89th percentile among its peer group of 36,897 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

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

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: flash-plugin-0:32.0.0.387-1.el6_10
View patch
adobevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-9633Critical

flash-plugin: Arbitrary Code Execution vulnerability (APSB20-30)

Jun 9, 2020

References

helpx.adobe.com / security/products/flash-player/apsb20-30.html
Vendor Advisory
security.gentoo.org / glsa/202006-09
Third Party Advisory