Security readout for executives and security teams
Plain-English summary
Adobe Premiere Rush 1.5.16 and earlier can be compromised if a user opens a malicious PNG file. Successful exploitation could let attacker-controlled code run with the same permissions as that user, creating risk to workstation data and creative workflows.
Executive priority
Treat this as a high-priority endpoint patching issue for creative teams, not an internet-facing emergency. Prioritize users who handle external media files because compromise could affect workstation data and business assets.
Technical view
The CVE describes a memory corruption flaw in Premiere Rush PNG parsing, mapped to CWE-788. CVSS 3.1 is 7.8 with local attack vector, no privileges required, required user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to endpoints running Adobe Premiere Rush 1.5.16 or earlier, especially media, marketing, and creative staff who process externally supplied image or project assets.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation. Exploitation requires user interaction with a malicious PNG file, so phishing, file-sharing, or supplier-provided media are plausible delivery contexts.
Researcher notes
Do not assume network exploitation from the RCE title. The CVSS vector is local with required user interaction, indicating a user-assisted file parsing issue. Patch specifics are not included in the supplied bundle, so rely on Adobe APSB21-101 for authoritative remediation.
Mitigation direction
- Inventory endpoints for Adobe Premiere Rush 1.5.16 or earlier.
- Review Adobe APSB21-101 and update according to Adobe guidance.
- Restrict opening untrusted PNG or media assets until remediation is confirmed.
- Remove unused or obsolete Premiere Rush installations from managed endpoints.
- Run Premiere Rush under least-privileged user accounts where possible.
Validation and detection
- Confirm installed Premiere Rush versions across managed endpoints.
- Verify remediated systems no longer run version 1.5.16 or earlier.
- Check EDR or asset records for affected creative workstations.
- Review recent user reports involving suspicious PNG or media files.
- Document exception owners for systems that cannot be updated promptly.
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-788: 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-2021-43022 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 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/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.