Security readout for executives and security teams
Plain-English summary
This is a low-severity information disclosure issue in Adobe Premiere Rush. A user would need to open a malicious MP4 file or visit a malicious page. Successful exploitation could expose some memory contents from the affected application, not change data or cause system compromise based on the provided sources.
Executive priority
Handle through normal endpoint patch management. Escalation is only warranted where affected creative workstations routinely process external media from unknown sources or where sensitive data exposure from application memory would be material.
Technical view
CVE-2021-43030 is an uninitialized pointer access issue (CWE-824) in Premiere Rush MP4 parsing. Affected versions are described as 1.5.16 and earlier. CVSS 3.0 is 3.3: local attack vector, low complexity, no privileges, user interaction required, low confidentiality impact only.
Likely exposure
Exposure is limited to endpoints with Adobe Premiere Rush 1.5.16 or earlier, especially users who receive or process external MP4 files. Organizations without Premiere Rush deployed are not affected based on the supplied evidence.
Exploitation context
The provided sources require user interaction: opening a malicious file or visiting a malicious page. The bundle does not identify active exploitation, and KEV status is false. Treat exploitation likelihood as lower than browser-facing or unauthenticated server vulnerabilities.
Researcher notes
The record names MP4 parsing and lack of memory initialization before access. Public evidence in the bundle is limited to CVE metadata and Adobe’s advisory URL; it does not provide exploit details, patch version text, or observed exploitation claims.
Mitigation direction
- Inventory Adobe Premiere Rush installations and versions.
- Prioritize systems running Premiere Rush 1.5.16 or earlier.
- Check Adobe APSB21-101 for the vendor-supported update or remediation guidance.
- Limit handling of untrusted MP4 files until remediated.
- Use endpoint controls to reduce exposure to unsolicited media files.
Validation and detection
- Confirm whether Adobe Premiere Rush is installed on managed endpoints.
- Verify installed versions against 1.5.16 and earlier.
- Review Adobe APSB21-101 for applicable fixed versions or instructions.
- Confirm remediation status through software inventory or endpoint management.
- Review incidents involving suspicious MP4 files if relevant.
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-824: Exact CWE lookup
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Open ATT&CK lookupCVE-2021-43030 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 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N1.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
3.3LowVector: CVSS:3.0/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/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 Uninitialized Pointer
Access of Uninitialized Pointer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.