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CVE-2021-21017: Adobe Acrobat and Reader

EPSS86.3%No. 536 of 1739 in KEV
CVE year2021listed the same year
Same vendor in KEV82
Same product13
FieldValue
VendorAdobe
ProductAcrobat and Reader
NameAdobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability
Added to KEV2021-11-03
US federal due date2021-11-17
Ransomware useUnknown
CWECWE-122

CISA description

Acrobat Acrobat and Reader contain a heap-based buffer overflow vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user.

Other entries for this product

CVEVendor / productAddedEPSSRansomware
CVE-2009-3459Adobe Acrobat and Reader2026-05-2086.5%Unknown
CVE-2026-34621Adobe Acrobat and Reader2026-04-132.1%Unknown
CVE-2023-21608Adobe Acrobat and Reader2023-10-1061.4%Unknown
CVE-2023-26369Adobe Acrobat and Reader2023-09-146.7%Unknown
CVE-2018-4990Adobe Acrobat and Reader2022-06-0836.2%Unknown
CVE-2010-2883Adobe Acrobat and Reader2022-06-0881.3%Unknown
CVE-2009-4324Adobe Acrobat and Reader2022-06-0881.8%Unknown
CVE-2009-3953Adobe Acrobat and Reader2022-06-0883.2%Unknown
CVE-2008-0655Adobe Acrobat and Reader2022-06-0837.8%Unknown
CVE-2007-5659Adobe Acrobat and Reader2022-06-0887.4%Unknown
CVE-2008-2992Adobe Acrobat and Reader2022-03-0398.4%Known
CVE-2021-28550Adobe Acrobat and Reader2021-11-0351.8%Unknown

NVD — CVE-2021-21017

Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page

A Adobe Acrobat and Reader vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2021-11-03.