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CVE-2021-28552

26
FAUCET Score

CVE-2021-28552 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 vulnerability carries a CVSS score of 7.8 (High), indicating that an unauthenticated attacker could achieve arbitrary code execution with high impact on confidentiality, integrity, and availability, requiring user interaction to open a malicious file. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

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
4.71%
Probability of exploitation in next 30 days
EPSS Percentile
90.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0471 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
helpx.adobe.com / security/products/acrobat/apsb21-29.html
Not Applicable