CVE-2020-3783Network attack vector

Arbitrary code execution via heap corruption

Published Mar 25, 2020 · Updated Aug 4, 2024

Heap corruption in Adobe Photoshop CC 2019 20.0.8 and earlier and Photoshop 2020 21.1 and earlier allows attackers to execute arbitrary code. Adobe has not disclosed the affected component, crafted input, or incorrect memory operation beyond identifying heap corruption. Execution occurs in the current user's context on Windows or macOS; public sources do not disclose the delivery or interaction gate.

CVSS severity9.8
Critical
EPSS probability4.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap corruption in Adobe Photoshop CC 2019 20.0.8 and earlier and Photoshop 2020 21.1 and earlier allows attackers to execute arbitrary code. Adobe has not disclosed the affected component, crafted input, or incorrect memory operation beyond identifying heap corruption. Execution occurs in the current user's context on Windows or macOS; public sources do not disclose the delivery or interaction gate.

The record

CVE
CVE-2020-3783
Published
Mar 25, 2020
Updated
Aug 4, 2024
Vendor
Adobe
Product
Adobe Photoshop
Classifications
CWE-787, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 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=Photoshop CC 2019, and Photoshop 2020 versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Photoshopversion=Photoshop CC 2019, and Photoshop 2020 versions

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
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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