Security readout for executives and security teams
Plain-English summary
A malicious WAV audio file can corrupt memory in Adobe Premiere Rush 1.5.16 and earlier. If a user opens the file, code could run with that user’s privileges. This is primarily a workstation risk for media teams, not a server-side internet exposure.
Executive priority
Prioritize remediation for media, marketing, and creative workstations that process external audio. The issue is high severity because code execution is possible, but urgency is reduced compared with internet-facing flaws because user interaction is required and active exploitation is not evidenced here.
Technical view
CVE-2021-40783 is a CWE-788 memory corruption issue in Adobe Premiere Rush WAV handling. The CVSS 3.0 score is 7.8 high with local attack vector and required user interaction. Successful exploitation may allow arbitrary code execution in the current user context.
Likely exposure
Organizations are exposed where Adobe Premiere Rush 1.5.16 or earlier remains installed, especially on endpoints that receive external WAV or project media files. The bundle does not identify other affected Adobe products.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires user interaction with a malicious WAV file and would run code as the current user, limiting but not removing business risk.
Researcher notes
The evidence supports affected Adobe Premiere Rush 1.5.16 and earlier, WAV-triggered memory corruption, CVSS 7.8, and current-user code execution. The provided bundle does not include proof-of-concept status, exploit telemetry, or detailed fixed-version text beyond the Adobe advisory reference.
Mitigation direction
- Inventory endpoints for Adobe Premiere Rush 1.5.16 or earlier.
- Review Adobe APSB21-101 for vendor update guidance.
- Update or remove affected Premiere Rush installations per Adobe guidance.
- Avoid opening untrusted WAV files in affected Premiere Rush versions.
- Apply endpoint controls for untrusted media attachments and downloads.
Validation and detection
- Confirm installed Premiere Rush versions across managed endpoints.
- Verify affected versions are updated or removed.
- Review software inventory for unmanaged media workstations.
- Check endpoint detections for suspicious activity after untrusted media handling.
- Document any residual exception with business owner and remediation date.
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
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CWE-788: Exact CWE lookup
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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-2021-40783 mapping review
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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/premiere_rush/apsb21-101.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.
Access of Memory Location After End of Buffer
Access of Memory Location After End of Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.