CVE-2024-44913Public exploit

Application crash via invalid EXR pointer write

Published Aug 28, 2024 · Updated Aug 28, 2024

Denial of service in IrfanView 4.67.1.0 allows attackers to crash the application by inducing a user to open a crafted EXR file. The EXR.dll ReadEXR routine writes a 16-bit value through an invalid pointer at offset 0x40ef1 while decoding the file, triggering an access violation. Successful exploitation requires user interaction and interrupts only the affected IrfanView process; no confidentiality or integrity impact is reported.

CVSS severity5.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in IrfanView 4.67.1.0 allows attackers to crash the application by inducing a user to open a crafted EXR file. The EXR.dll ReadEXR routine writes a 16-bit value through an invalid pointer at offset 0x40ef1 while decoding the file, triggering an access violation. Successful exploitation requires user interaction and interrupts only the affected IrfanView process; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2024-44913
Published
Aug 28, 2024
Updated
Aug 28, 2024
Vendor
IrfanView Software
Product
IrfanView
Classifications
CWE-284, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=4.67.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IrfanView Software · IrfanViewversion=4.67.1.0

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1499.004Application or System Exploitation

Public exploit references

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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