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CVE-2021-35995— Adobe After Effects MP4 File Parsing Uninitialized Variable Information Disclosure Vulnerability

Quick assessment

Affected

Adobe After Effects

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Adobe After Effects是美国奥多比（Adobe）公司的一套视觉效果和动态图形制作软件。该软件主要用于2D和3D合成、动画制作和视觉特效制作等。 Adobe After Effects存在输入验证错误漏洞，攻击者可利用该漏洞触发任意代码执行。

CVSS 3.3 · Low EPSS 2.31% · P83 Updated Apr 29, 2025

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

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I. Basic Information for CVE-2021-35995

Vulnerability Information

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Vulnerability Title

Adobe After Effects MP4 File Parsing Uninitialized Variable Information Disclosure Vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Adobe After Effects version 18.2.1 (and earlier) is affected by an Improper input validation vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to disclose arbitrary memory information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

输入验证不恰当

Source: CVE Program / CVE List V5

Vulnerability Title

Adobe After Effects 输入验证错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Adobe	After Effects	unspecified ~ 18.2.1	-

II. Public POCs for CVE-2021-35995

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2021-35995

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Vendor Advisories for CVE-2021-35995 (1)

https://helpx.adobe.com/security/products/after_effects/apsb21-54.html x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2021-35995

Same Patch Batch · Adobe · 2021-09-02 · 18 CVEs total

CVE-2021-28560	8.8 HIGH	Adobe Acrobat Reader heap corruption vulnerability could lead to arbitrary code execution
CVE-2021-28561	8.8 HIGH	Adobe Acrobat Reader memory corruption vulnerability could lead to remote code execution
CVE-2021-28564	8.8 HIGH	Adobe Acrobat Reader out-of-bounds write vulnerability could lead to arbitrary code execut
CVE-2021-35996	7.8 HIGH	Adobe After Effects Memory Corruption Could Lead To Arbitrary Code Execution
CVE-2021-21086	7.8 HIGH	Adobe Reader CoolType Arbitrary Stack Manipulation
CVE-2021-35993	7.8 HIGH	Adobe After Effects PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerabili
CVE-2021-35994	7.8 HIGH	Adobe After Effects JPEG2000 Parsing Out-Of-Bounds Write Remote Code Execution Vulnerabili
CVE-2021-36017	7.8 HIGH	Adobe After Effects PDF File Parsing Memory Corruption Remote Code Execution Vulnerability
CVE-2021-28559	5.3 MEDIUM	Adobe Acrobat Reader privacy violation vulnerability could lead to privilege escalation
CVE-2021-28565	4.3 MEDIUM	Adobe Acrobat Reader out-of-bounds read could lead to information exposure
CVE-2021-28557	4.3 MEDIUM	Adobe Acrobat Reader out-of-bounds read in PDFLibTool could lead to information exposure
CVE-2021-36018	3.3 LOW	Adobe After Effects PDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerabili
CVE-2021-36019	3.3 LOW	Adobe After Effects PDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerabili
CVE-2021-28553		Adobe Acrobat Reader use-after-free vulnerability could lead to arbitrary code execution
CVE-2021-28550		Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution
CVE-2021-28555		Adobe Acrobat Reader out-of-bounds Read could lead to information disclosure
CVE-2021-28558		Adobe Acrobat Reader heap-based buffer overflow could lead to arbitrary code execution

IV. Related Vulnerabilities

Same product: After Effects

Same vendor: Adobe

Same weakness: CWE-20