Adobe Animate out-of-bounds read vulnerability

published 2021-03-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8464

cvss: 7.1; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 3.3%; EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits: 0; none known

Adobe Animate version 21.0.3 (and earlier) is affected by an Out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to disclose sensitive information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Patch / fix

links 1

helpx.adobe.com/security/products/animate/apsb21-21.html advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 18 mo ago (2025-04-23)

Exploit prediction

3.35% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.1	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
NVD	2.0	5.8	AV:N/AC:M/Au:N/C:P/I:N/A:P

Affected products

Adobe Animate

Classification

Weakness

CWE-125 Out-of-bounds Read

References

helpx.adobe.com /security/products/animate/apsb21-21.html
patch, vendor-advisory

Sources

CVE List CVE-2021-21073
NVD CVE-2021-21073

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Summary