What is CVE-2021-28559?

CVE-2021-28559 is a medium-severity vulnerability in Adobe Acrobat, classified under Exposure of Private Personal Information to an Unauthorized Actor. CVSS score: 5.3/10. Published 2021-09-02.

How severe is CVE-2021-28559?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-28559 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Adobe Acrobat

CVE-2021-28559

Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by an Information Exposure vulnerability. An unauthenticated attacker could leverage this vulnerability to get access to restricted data stored within global variables and objects.

EPSS: 0.016 (74.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Adobe Acrobat
Adobe Acrobat_dc
Adobe Acrobat Reader — versions unspecified
Adobe Acrobat_reader
Adobe Acrobat_reader_dc
Apple Macos
Microsoft Windows

Weakness classification (CWE)

CWE-359 — Exposure of Private Personal Information to an Unauthorized Actor

Public proof-of-concept exploits

n0-traces/cve_

References

psirt@adobe.com (x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-28559?: CVE-2021-28559 is a medium-severity vulnerability in Adobe Acrobat, classified under Exposure of Private Personal Information to an Unauthorized Actor. CVSS score: 5.3/10. Published 2021-09-02.
How severe is CVE-2021-28559?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-28559 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.