CVE-2020-9656

Code execution via malformed MP4 structure

Published Jun 25, 2020 · Updated Aug 4, 2024

Out-of-bounds write in Adobe Premiere Rush 1.5.12 and earlier allows remote attackers to execute code through a crafted MP4 file. The MP4 parser fails to validate user-supplied data before writing beyond an allocated structure. Exploitation requires a user to open the malicious file or visit a malicious page, and code runs in the current process.

CVSS severity7.8
High
EPSS probability4.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Adobe Premiere Rush 1.5.12 and earlier allows remote attackers to execute code through a crafted MP4 file. The MP4 parser fails to validate user-supplied data before writing beyond an allocated structure. Exploitation requires a user to open the malicious file or visit a malicious page, and code runs in the current process.

The record

CVE
CVE-2020-9656
Published
Jun 25, 2020
Updated
Aug 4, 2024
Vendor
Adobe
Product
Adobe Premiere Rush
Classifications
CWE-787, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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.

  1. Affected versionversion=1.5.12 and earlier versions

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Premiere Rushversion=1.5.12 and earlier versions

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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