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TI-2021-04158 Aliases CVE-2021-21052GHSA-q3rv-6rr6-8pjg

Adobe Animate Out-of-Bounds Write Vulnerability Could Lead To Arbitrary Code Execution

Priority MEDIUM 43CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Adobe Animate version 21.0.2 (and earlier) is affected by an Out-of-bounds Write 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03972 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeAnimateup to 21.0.2; up to None—No fix listedCNA
  • Animate VendorAdobe Affected up to 21.0.2; up to None Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:adobe:animate:*:*:*:*:*:*:*:*up to 21.0.2VulnerableAdobe
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:adobe:animate:*:*:*:*:*:*:*:* Versions up to 21.0.2 Vulnerable ·Adobe
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21052
  2. 2026-10-03 Alias added: GHSA-q3rv-6rr6-8pjg
  3. 2026-10-30 EPSS moved to the 90th–95th percentile

References

Advisory 1

  • TI-2016-06610 Memory corruption in Adobe Animate 15.2.1.95 and earlier CVSS 3.0CRITICAL 9.8
  • TI-2021-09690 Adobe Animate heap corruption vulnerability could lead to arbitrary code execution CVSS 3.0HIGH 7.8
  • TI-2021-04183 Adobe Animate heap-based overflow vulnerability CVSS 3.0HIGH 7.8
  • TI-2021-09699 Adobe Animate heap corruption vulnerability could lead to arbitrary code execution CVSS 3.0HIGH 7.8
  • TI-2021-04177 Adobe Animate memory corruption vulnerability CVSS 3.0HIGH 7.8
  • TI-2021-18706 Adobe Animate FLA File Parsing Use After Free Remote Code Execution CVSS 3.1HIGH 7.8
See all 108 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences