CVE-2020-9662

Code execution via out-of-bounds MP4 write

Published Jun 25, 2020 · Updated Aug 4, 2024

Out-of-bounds write in Adobe After Effects 17.1 and earlier allows remote attackers to execute arbitrary code through a crafted MP4 file. The MP4 parser fails to validate user-supplied data before writing beyond the end of an allocated structure. Exploitation requires the target to visit a malicious page or open the file and runs code in the current process and the current user's context.

CVSS severity7.8
High
EPSS probability3.65%
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 After Effects 17.1 and earlier allows remote attackers to execute arbitrary code through a crafted MP4 file. The MP4 parser fails to validate user-supplied data before writing beyond the end of an allocated structure. Exploitation requires the target to visit a malicious page or open the file and runs code in the current process and the current user's context.

The record

CVE
CVE-2020-9662
Published
Jun 25, 2020
Updated
Aug 4, 2024
Vendor
Adobe
Product
Adobe After Effects
Classifications
CWE-787, T1203, T1204.002
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=17.1 and earlier versions

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Adobe After Effectsversion=17.1 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
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3NIST NVDAV:N/AC:M/Au:N/C:C/I:C/A:C

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1203Exploitation for Client Execution
T1204.002Malicious File

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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