CVE-2021-21077— Adobe Animate heap-based overflow vulnerability
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I. Basic Information for CVE-2021-21077
Vulnerability Information
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Vulnerability Title
Adobe Animate heap-based overflow vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Adobe Animate version 21.0.3 (and earlier) is affected by a Heap-based Buffer Overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Adobe Animate 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Animate是美国奥多比（Adobe）公司的一套Flash动画制作软件。 Adobe Animate version 21.0.3 (and earlier) 存在缓冲区错误漏洞，该漏洞允许未经身份验证的攻击者在当前用户的上下文中实现任意代码执行。
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
II. Public POCs for CVE-2021-21077
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://helpx.adobe.com/security/products/animate/apsb21-21.htmlx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-21077
Same Patch Batch · Adobe · 2021-03-12 · 16 CVEs total
| CVE-2021-21082 | 7.8 HIGH | Adobe Photoshop Memory Corruption |
| CVE-2021-21085 | 7.8 HIGH | Adobe Connect CSV injection via export feature could lead to code execution |
| CVE-2021-21067 | 7.8 HIGH | Adobe Photoshop CoolType arbitrary stack manipulation in Type 1/Multiple Master |
| CVE-2021-21078 | Adobe Creative Cloud Unquoted Service Path in CCXProcess | |
| CVE-2021-21074 | Adobe Animate out-of-bounds read vulnerability | |
| CVE-2021-21056 | Adobe FrameMaker Out-of-Bounds Read Vulnerability Could Lead To Remote Code Execution | |
| CVE-2021-21071 | Adobe Animate memory corruption vulnerability | |
| CVE-2021-21075 | Adobe Animate out-of-bounds read vulnerability | |
| CVE-2021-21080 | Adobe Connect Reflected Cross-site Scripting via query parameter | |
| CVE-2021-21076 | Adobe Animate out-of-bounds read vulnerability | |
| CVE-2021-21068 | Adobe Creative Cloud installer arbitrary file overwrite vulnerability | |
| CVE-2021-21069 | Adobe Creative Cloud Privilege Escalation Vulnerability | |
| CVE-2021-21073 | Adobe Animate out-of-bounds read vulnerability | |
| CVE-2021-21072 | Adobe Animate out-of-bounds read vulnerability | |
| CVE-2021-21079 | Adobe Connect Reflected Cross-site Scripting via archiveOffset parameter |
IV. Related Vulnerabilities
Same vendor: Adobe
- CVE-2026-34632
Photoshop Installer | CWE-427: Uncontrolled Search Path Elem - CVE-2026-27297
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (C - CVE-2026-27300
Adobe Framemaker | Access of Uninitialized Pointer (CWE-824) - CVE-2026-27296
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (C - CVE-2026-27290
Adobe Framemaker | Untrusted Search Path (CWE-426)
Same weakness: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading
V. Comments for CVE-2021-21077
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