CVE-2026-34703

Application crash

Published Jun 9, 2026 · Updated Jun 9, 2026

NULL pointer dereference in Adobe InDesign Desktop 21.3, 20.5.3 and earlier allows attackers to crash the application via a malicious file. Adobe identifies neither the affected parser nor the operation that dereferences a null pointer during file processing. Exploitation requires a victim to open the file, and the disclosed consequence is interruption of that InDesign process.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Adobe InDesign Desktop 21.3, 20.5.3 and earlier allows attackers to crash the application via a malicious file. Adobe identifies neither the affected parser nor the operation that dereferences a null pointer during file processing. Exploitation requires a victim to open the file, and the disclosed consequence is interruption of that InDesign process.

The record

CVE
CVE-2026-34703
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Adobe
Product
InDesign
Classifications
CWE-476, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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 <=20.5.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · InDesignversion=0 <=20.5.3

Published CVSS scores

5.5Adobe Systems IncorporatedCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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-476NULL Pointer Dereference
T1204.002User Execution: Malicious 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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