CVE-2021-21017

HIGHCISA KEV

8.8

Description

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/11/2021

Last Modified10/23/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorAdobe

ProductAcrobat and Reader

Vulnerability NameAdobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2021-11-17

Ransomware UseUnknown

Affected Products

adobe:acrobatadobe:acrobat_dcadobe:acrobat_readeradobe:acrobat_reader_dcapple:macosmicrosoft:windows

Weaknesses (CWE)

CWE-122CWE-787

References

https://helpx.adobe.com/security/products/acrobat/apsb21-09.html(psirt@adobe.com)

https://helpx.adobe.com/security/products/acrobat/apsb21-09.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21017(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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