CVE-2021-28574Network attack vector

Information disclosure via crafted-file out-of-bounds read

Published Jun 28, 2021 · Updated Apr 23, 2025

Out-of-bounds read in Adobe Animate 21.0.5 and earlier allows remote attackers to disclose process memory through a crafted file. Animate's file parser reads beyond an allocated buffer while parsing the file; Adobe has not disclosed the affected format or parser routine. Exploitation requires a victim to open the malicious file, and the disclosure occurs in the context of that user's process.

CVSS severity4.3
Medium
EPSS probability3.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Adobe Animate 21.0.5 and earlier allows remote attackers to disclose process memory through a crafted file. Animate's file parser reads beyond an allocated buffer while parsing the file; Adobe has not disclosed the affected format or parser routine. Exploitation requires a victim to open the malicious file, and the disclosure occurs in the context of that user's process.

The record

CVE
CVE-2021-28574
Published
Jun 28, 2021
Updated
Apr 23, 2025
Vendor
Adobe
Product
Adobe Animate
Classifications
CWE-125, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 28, 2021CVE publishedPublication date reported by the CVE source.
  2. 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.

  1. Affected versionversion=unspecified <=21.0.4
  2. Affected versionversion=unspecified <=None

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Animateversion=unspecified <=21.0.4; version=unspecified <=None

Published CVSS scores

4.3AdobeCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1204.002Malicious File

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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