Information disclosure via uninitialized MP4 parser pointer
Published Dec 20, 2021 · Updated Apr 23, 2025
Access of an uninitialized pointer in Adobe Premiere Rush 1.5.16 and earlier allows remote attackers to disclose memory via crafted MP4 files. The MP4 parser reads through a pointer whose memory was not initialized before access, exposing process-memory contents. Exploitation requires a user to visit a malicious page or open a malicious file on an affected Windows system; no integrity or availability impact is reported.
Summary
What happened
Access of an uninitialized pointer in Adobe Premiere Rush 1.5.16 and earlier allows remote attackers to disclose memory via crafted MP4 files. The MP4 parser reads through a pointer whose memory was not initialized before access, exposing process-memory contents. Exploitation requires a user to visit a malicious page or open a malicious file on an affected Windows system; no integrity or availability impact is reported.
The record
- CVE
- CVE-2021-43746
- Published
- Dec 20, 2021
- Updated
- Apr 23, 2025
- Vendor
- Adobe
- Product
- Adobe Premiere Rush
- Classifications
- CWE-824, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 20, 2021CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <=1.5.16
- Affected versionversion=unspecified <=None
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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