CVE-2025-21122

Code execution via malicious file integer underflow

Published Jan 14, 2025 · Updated Feb 26, 2026

Integer underflow in Adobe Photoshop 25.12 and earlier and 26.1 and earlier allows attackers to execute code via a malicious file. Adobe has not published the affected file parser, arithmetic operation, or data field that triggers the integer wraparound. Exploitation requires a local user to open the crafted file and executes code in that user's context.

CVSS severity7.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer underflow in Adobe Photoshop 25.12 and earlier and 26.1 and earlier allows attackers to execute code via a malicious file. Adobe has not published the affected file parser, arithmetic operation, or data field that triggers the integer wraparound. Exploitation requires a local user to open the crafted file and executes code in that user's context.

The record

CVE
CVE-2025-21122
Published
Jan 14, 2025
Updated
Feb 26, 2026
Vendor
Adobe
Product
Adobe Photoshop
Classifications
CWE-191, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 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 <=26.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Photoshopversion=0 <=26.1

Published CVSS scores

7.8AdobeCVSS: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.

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-191Integer Underflow (Wrap or Wraparound)
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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