Vulnerability Intelligence Report
Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21017
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:86.21%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-122 ↗Heap-based Buffer Overflow (CWE-122)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Adobe | Acrobat Reader | unspecified <= 2020.013.20074 (affected), unspecified <= 2020.001.30018 (affected), unspecified <= 2017.011.30188 (affected), unspecified <= None (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Adobe Systems Incorporated · Vendor · USA |
| Reserved | 2020-12-18T00:00:00 |
| Published | 2021-02-11T19:42:20 |
| Patch Date | 2021-02-09 |
| Last Updated | 2025-10-21T23:35:28 |
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