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CVE-2021-28632

27
FAUCET Score

CVE-2021-28632 is a Use After Free vulnerability affecting Adobe Acrobat Reader DC versions 2021.001.20155 and earlier, 2020.001.30025 and earlier, and 2017.011.30196 and earlier, impacting systems running Adobe, Apple, and Microsoft products. This high-severity vulnerability (CVSS 7.8) allows an unauthenticated attacker to achieve arbitrary code execution with user interaction, typically by opening a malicious file. While the FAUCET Risk Score is 94/100 and EPSS indicates a higher-than-average exploitability probability, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2017.011.30196CPE match
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
<= 2020.001.30025CPE match
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
<= 2021.001.20155CPE match
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
>= 15.008.20082, <= 21.001.20155CPE matchmatch criteria
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
>= 15.008.20082, <= 21.001.20155CPE matchmatch criteria
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.17%
Probability of exploitation in next 30 days
EPSS Percentile
91.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0517 is in the 92nd percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

References

helpx.adobe.com / security/products/acrobat/apsb21-37.html
Vendor Advisory