Security readout for executives and security teams
Plain-English summary
This is a low-severity Adobe Animate issue where a malicious FLA file could make the application read memory it should not. If a user opens that file, some information from the user’s context could be exposed. It does not allow remote compromise by itself, and the source bundle does not show active exploitation.
Executive priority
Treat this as routine patch hygiene for creative workstations, not an emergency. Prioritize teams that exchange FLA files externally or receive project files from untrusted sources.
Technical view
CVE-2021-28630 is a CWE-125 out-of-bounds read in Adobe Animate 21.0.6 and earlier during specially crafted file parsing. CVSS 3.1 is 3.3: local attack vector, low complexity, no privileges, required user interaction, unchanged scope, low confidentiality impact, and no integrity or availability impact.
Likely exposure
Exposure is most likely on workstations where Adobe Animate 21.0.6 or earlier is installed and users open FLA files from email, downloads, file shares, or external collaborators.
Exploitation context
The attacker must persuade a victim to open a malicious file. The provided sources do not report known active exploitation, and the CVE is not listed as KEV in the bundle.
Researcher notes
Evidence supports a confidentiality-only out-of-bounds read requiring user interaction. The bundle does not provide exploit details, indicators, or a named fixed version, so remediation should be validated against Adobe APSB21-50.
Mitigation direction
- Inventory Adobe Animate installations and identify version 21.0.6 or earlier.
- Review Adobe APSB21-50 and apply vendor-directed updates or mitigations.
- Limit opening FLA files from untrusted or unexpected sources.
- Use email and web controls to quarantine suspicious creative project files.
Validation and detection
- Confirm whether Adobe Animate is installed on creator and design workstations.
- Verify installed versions against the affected 21.0.6-and-earlier range.
- Check whether Adobe APSB21-50 guidance has been applied.
- Review recent suspicious FLA file handling where telemetry is available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-125: Exact CWE lookup
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Open ATT&CK lookupCVE-2021-28630 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 3.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N1.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.3LowVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/animate/apsb21-50.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.