Security readout for executives and security teams
Plain-English summary
CVE-2021-28608 is a high-severity Adobe After Effects flaw. A malicious file can corrupt memory and run code as the user who opens it. The main business risk is compromised creative workstations after staff open untrusted project or media files.
Executive priority
Prioritize remediation for creative and production teams handling external files. This is not described as remotely exploitable over the network, but successful exploitation can compromise a user workstation and business files.
Technical view
Adobe After Effects 18.2 and earlier are described as affected by a heap-based buffer overflow during crafted file parsing. CVSS is 7.8 with local attack vector, low complexity, no privileges required, required user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely on workstations running Adobe After Effects 18.2 or earlier, especially in teams that receive files from clients, vendors, shared drives, or public sources. The CVE data does not indicate network-service exposure.
Exploitation context
The attacker does not need authentication, but a victim must open a malicious file. Code execution would occur in the current user context. The provided bundle marks KEV as false and provides no cited evidence of active exploitation.
Researcher notes
The source bundle gives strong vulnerability mechanics and CVSS context but lacks CPEs and exact fixed versions. Validate affected and fixed releases against Adobe APSB21-49 before closing findings. Do not assume active exploitation from the supplied evidence.
Mitigation direction
- Inventory endpoints for Adobe After Effects versions 18.2 or earlier.
- Review Adobe APSB21-49 and apply the vendor-recommended update or remediation.
- Limit opening After Effects files from untrusted external sources.
- Use endpoint controls to contain suspicious After Effects child processes or file activity.
- Remove unused vulnerable After Effects installations from managed systems.
Validation and detection
- Confirm installed After Effects versions after remediation.
- Check Adobe APSB21-49 for the exact fixed version guidance.
- Verify creative workstations are included in vulnerability management scans.
- Review recent security alerts involving After Effects opening external files.
- Document any systems that cannot be upgraded and track compensating controls.
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-122: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-28608 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
- High
- CVSS
- 7.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.8HighVector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/after_effects/apsb21-49.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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.