CVE-2021-21017

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Summary

CVECVE-2021-21017
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-11 20:15:00 UTC
Updated2022-08-05 18:26:00 UTC
DescriptionAcrobat 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.

Risk And Classification

EPSS: 0.906460000 probability, percentile 0.996160000 (date 2026-04-01)

CISA KEV: Listed on 2021-11-03; due 2021-11-17; ransomware use Unknown

Problem Types: CWE-787

CISA Known Exploited Vulnerability

VendorAdobe
ProductAcrobat and Reader
NameAdobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2021-21017

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Adobe Acrobat All All All All
Application Adobe Acrobat All All All All
Application Adobe Acrobat Dc All All All All
Application Adobe Acrobat Reader All All All All
Application Adobe Acrobat Reader All All All All
Application Adobe Acrobat Reader Dc All All All All
Operating System Apple Macos - All All All
Operating System Apple Mac Os - All All All
Operating System Apple Mac Os - All All All
Operating System Apple Mac Os - All All All
Operating System Microsoft Windows - All All All
Operating System Microsoft Windows - All All All
Operating System Microsoft Windows - All All All

References

ReferenceSourceLinkTags
Adobe Security Bulletin MISC helpx.adobe.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev
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