Security readout for executives and security teams
Plain-English summary
A malicious file can crash Adobe Premiere Rush when opened by a user. The impact is denial of service to the application, not data theft or system takeover based on the provided sources.
Executive priority
Treat as a moderate endpoint availability issue. Prioritize media teams and shared production workstations, but it is lower urgency than remotely exploitable or data-compromise vulnerabilities.
Technical view
CVE-2021-43748 is a CWE-476 NULL pointer dereference in Adobe Premiere Rush 1.5.16 and earlier. CVSS 3.1 is 5.5 with local access, low complexity, no privileges, required user interaction, and high availability impact.
Likely exposure
Exposure is limited to endpoints running Adobe Premiere Rush 1.5.16 or earlier, especially media-production systems that handle externally supplied files.
Exploitation context
The sources do not show CISA KEV listing or active exploitation. Exploitation requires a victim to open a malicious file, causing application denial of service in the current user context.
Researcher notes
The public details identify the weakness class and interaction requirement but do not provide detailed root cause or fixed-version data in the provided bundle. Avoid assuming broader Adobe product exposure.
Mitigation direction
- Review Adobe APSB21-101 and apply vendor-recommended updates or guidance.
- Identify and remove or upgrade Premiere Rush 1.5.16 and earlier installations.
- Avoid opening untrusted Premiere Rush or media files on vulnerable systems.
- Use endpoint controls to restrict untrusted file sources for media teams.
Validation and detection
- Inventory installed Adobe Premiere Rush versions across managed endpoints.
- Confirm whether any systems run Premiere Rush 1.5.16 or earlier.
- Check media-production workflows for externally supplied file intake.
- Document remediation status against Adobe APSB21-101 guidance.
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-476: 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-2021-43748 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
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.