CVE-2025-54220

Code execution in the current user context

Published Aug 12, 2025 · Updated Feb 26, 2026

Heap-based buffer overflow in Adobe InCopy 20.4 and 19.5.4 and earlier allows attackers to execute code when a user opens a malicious file. Adobe has not disclosed the affected file parser, malformed field, or unchecked memory operation that causes the heap overwrite. Exploitation requires a user to open the crafted file, and resulting code runs only in the current user's context.

CVSS severity7.8
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Adobe InCopy 20.4 and 19.5.4 and earlier allows attackers to execute code when a user opens a malicious file. Adobe has not disclosed the affected file parser, malformed field, or unchecked memory operation that causes the heap overwrite. Exploitation requires a user to open the crafted file, and resulting code runs only in the current user's context.

The record

CVE
CVE-2025-54220
Published
Aug 12, 2025
Updated
Feb 26, 2026
Vendor
Adobe
Product
InCopy
Classifications
CWE-122, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record 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=0 <=19.5.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · InCopyversion=0 <=19.5.4

Published CVSS scores

7.8Adobe Systems IncorporatedCVSS:3.1/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.

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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-122Heap-based Buffer Overflow
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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