CVE-2024-11507

Code execution via DXF parser type confusion

Published Nov 22, 2024 · Updated Nov 22, 2024

Type confusion in IrfanView 4.62 32-bit allows remote attackers to execute arbitrary code when a crafted DXF file is opened. The DXF parser fails to validate user-supplied data before treating it as an incompatible type, but the precise parser function and object types are undisclosed. Execution requires a user to visit a malicious page or open a malicious file, and the resulting code runs in the IrfanView process context.

CVSS severity7.8
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in IrfanView 4.62 32-bit allows remote attackers to execute arbitrary code when a crafted DXF file is opened. The DXF parser fails to validate user-supplied data before treating it as an incompatible type, but the precise parser function and object types are undisclosed. Execution requires a user to visit a malicious page or open a malicious file, and the resulting code runs in the IrfanView process context.

The record

CVE
CVE-2024-11507
Published
Nov 22, 2024
Updated
Nov 22, 2024
Vendor
IrfanView Software
Product
IrfanView
Classifications
CWE-843, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 22, 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=4.62 32bit
  2. Affected versionversion=4.62 <4.70

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IrfanView Software · IrfanViewversion=4.62 32bit; version=4.62 <4.70

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8Zero Day InitiativeCVSS:3.0/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-843Access of Resource Using Incompatible Type ('Type Confusion')
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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