HIGHCVSS v3.1 8.8Actively exploited · CISA KEV since 2021-11-03Vulnerability
CVE-2021-21017
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.
Properties
- Euvd product
- Acrobat Reader
- Vulnerability name
- Adobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability
- First seen
- 2025-10-21T23:35:28+00:00
- Cvss score
- 8.8
- Epss score
- 0.86326
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2021-11-17
- Euvd assigner
- adobe
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2021-11-03T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2021-11-03
- Score
- 8.8
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Euvd vendor
- Adobe
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 8.8
Related Entities (10)
AFFECTS_PRODUCT (6)
HAS_WEAKNESS (2)
DESCRIBES (1)
INVOLVES (1)
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