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Vulnerability record · CVE-2021-40766 · published 16 March 2022

CVE-2021-40766: Adobe character animator out-of-bounds read vulnerability

Adobe · Character Animator

Adobe Character Animator version 4.4 (and earlier versions) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

3.3 CVSS 3.1 Low EPSS 1.2% · top 33.6% CWE-125 · Out-of-bounds read
3.3CVSS 3.1 base score, v2 4.3
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Adobe Character Animator version 4.4 (and earlier versions) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://helpx.adobe.com/security/products/character_animator/apsb21-95.html Vendor Advisory
https://helpx.adobe.com/security/products/character_animator/apsb21-95.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2022-34242Adobe character animator out-of-bounds read vulnerabilityAdobe Character Animator version 4.4.7 (and earlier) and 22.4 (and earlier) are affected by an out-of-bounds read vulnerability when parsing a crafte…EPSS 0.40%7.8CVE-2022-34241Adobe character animator heap-based buffer overflow vulnerabilityAdobe Character Animator version 4.4.7 (and earlier) and 22.4 (and earlier) are affected by a Heap-based Buffer Overflow vulnerability that could res…EPSS 0.48%7.8CVE-2022-28819Adobe character animator out-of-bounds write vulnerabilityAdobe Character Animator versions 4.4.2 (and earlier) and 22.3 (and earlier) are affected by an out-of-bounds write vulnerability that could result i…EPSS 2.9%7.8CVE-2021-40764Adobe character animator memory buffer overflow vulnerabilityAdobe Character Animator version 4.4 (and earlier) is affected by a memory corruption vulnerability when parsing a M4A file, potentially resulting in…EPSS 1.7%7.8CVE-2021-40765Adobe character animator memory buffer overflow vulnerabilityAdobe Character Animator version 4.4 (and earlier) is affected by a memory corruption vulnerability when parsing a M4A file, potentially resulting in…EPSS 1.7%7.8CVE-2021-40763Adobe character animator memory buffer overflow vulnerabilityAdobe Character Animator version 4.4 (and earlier) is affected by a memory corruption vulnerability when parsing a WAF file, potentially resulting in…EPSS 1.7%7.8CVE-2021-36000Adobe character animator out-of-bounds write vulnerabilityAdobe Character Animator version 4.2 (and earlier) is affected by a memory corruption vulnerability when parsing a specially crafted file. An unauthe…EPSS 2.3%7.8CVE-2020-9586Adobe character animator classic buffer overflow vulnerabilityAdobe Character Animator versions 3.2 and earlier have a buffer overflow vulnerability. Successful exploitation could lead to arbitrary code executio…EPSS 7.6%

Source: NIST National Vulnerability Database (record CVE-2021-40766), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.