Information disclosure via unchecked FLV buffer read
Published Aug 20, 2021 · Updated Apr 23, 2025
Out-of-bounds read in Adobe Media Encoder 15.2 and earlier allows remote attackers to disclose process memory via a crafted FLV file. FLV parsing fails to validate user-supplied data before reading beyond the end of an allocated buffer. Exploitation requires a victim to visit a malicious page or open a malicious file, and disclosure is limited to data readable from the current process.
Summary
What happened
Out-of-bounds read in Adobe Media Encoder 15.2 and earlier allows remote attackers to disclose process memory via a crafted FLV file. FLV parsing fails to validate user-supplied data before reading beyond the end of an allocated buffer. Exploitation requires a victim to visit a malicious page or open a malicious file, and disclosure is limited to data readable from the current process.
The record
- CVE
- CVE-2021-36016
- Published
- Aug 20, 2021
- Updated
- Apr 23, 2025
- Vendor
- Adobe
- Product
- Adobe Media Encoder
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 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 <=15.2
- 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.
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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