Information disclosure via crafted-file out-of-bounds read
Published Mar 12, 2021 · Updated Apr 23, 2025
Out-of-bounds read in Adobe Animate 21.0.3 and earlier allows attackers to disclose process memory through a crafted file. Adobe has not disclosed the affected parser, file format, or specific bounds-checking failure that causes the invalid read. Exploitation requires a victim to open the malicious file and exposes information in the context of the current user.
Summary
What happened
Out-of-bounds read in Adobe Animate 21.0.3 and earlier allows attackers to disclose process memory through a crafted file. Adobe has not disclosed the affected parser, file format, or specific bounds-checking failure that causes the invalid read. Exploitation requires a victim to open the malicious file and exposes information in the context of the current user.
The record
- CVE
- CVE-2021-21076
- Published
- Mar 12, 2021
- Updated
- Apr 23, 2025
- Vendor
- Adobe
- Product
- Adobe Animate
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 12, 2021CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <=21.0.3
- Affected versionversion=unspecified <=None
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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