Security readout for executives and security teams
Plain-English summary
CVE-2021-28575 is an Adobe Animate flaw that can expose sensitive information if a user opens a specially crafted malicious file. It is not a remote, no-click compromise based on the provided sources. Business urgency is moderate and concentrated on users who handle Animate files from external or untrusted sources.
Executive priority
Address in normal vulnerability management cycles, with faster action for teams handling external creative files. The issue can disclose information but requires user interaction and has no confirmed active exploitation in the provided evidence.
Technical view
Adobe Animate 21.0.5 and earlier are affected by a CWE-125 out-of-bounds read during crafted file parsing. The CVSS 3.1 score is 4.3, with network attack vector, low complexity, no privileges required, required user interaction, and low confidentiality impact only.
Likely exposure
Exposure is likely limited to endpoints where Adobe Animate 21.0.5 or earlier is installed, especially creative or marketing workstations that open externally supplied files. The provided sources do not identify other Adobe products or platforms as affected.
Exploitation context
The provided sources say exploitation requires a victim to open a malicious file. CISA KEV status is false in the bundle, and no cited source claims active exploitation. Treat this as a phishing or file-delivery risk rather than an unauthenticated server-side exposure.
Researcher notes
The key uncertainty is remediation detail: the bundle identifies affected versions and Adobe’s advisory, but does not include the fixed version text. Do not broaden scope beyond Adobe Animate 21.0.5 and earlier without additional vendor evidence.
Mitigation direction
- Check Adobe APSB21-35 for the vendor-approved update or mitigation path.
- Inventory Adobe Animate installations and prioritize versions 21.0.5 and earlier.
- Limit opening of Animate files from untrusted or unexpected sources.
- Remove Adobe Animate where there is no business requirement.
- Use endpoint controls to monitor suspicious file-delivery patterns.
Validation and detection
- Confirm whether Adobe Animate is installed on managed endpoints.
- Identify installed versions and flag 21.0.5 or earlier.
- Verify remediation status against Adobe APSB21-35 guidance.
- Review whether affected users receive external Animate files.
- Check security tooling for alerts involving suspicious Animate file handling.
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
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-28575 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
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/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:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/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/apsb21-35.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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.