CVE-2025-48073Public exploit

Application crash via unallocated sample-buffer write

Published Jul 31, 2025 · Updated Jul 31, 2025

NULL pointer dereference in OpenEXR 3.3.2 allows context-dependent attackers to crash an application via a crafted deep scanline image. The ScanLineProcess::run_fill function writes fillValue through a null destination because reduceMemory skips allocating sample data when the declared sample count exceeds its memory threshold. Exploitation requires an application to process the image with reduceMemory enabled, and the bounded consequence is an application crash.

CVSS severity4.6
Medium
EPSS probability0.20%
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 OpenEXR 3.3.2 allows context-dependent attackers to crash an application via a crafted deep scanline image. The ScanLineProcess::run_fill function writes fillValue through a null destination because reduceMemory skips allocating sample data when the declared sample count exceeds its memory threshold. Exploitation requires an application to process the image with reduceMemory enabled, and the bounded consequence is an application crash.

The record

CVE
CVE-2025-48073
Published
Jul 31, 2025
Updated
Jul 31, 2025
Vendor
Academy Software Foundation
Product
OpenEXR
Classifications
CWE-476, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 2025Record 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=>= 3.3.2, < 3.3.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Academy Software Foundation · OpenEXRversion=>= 3.3.2, < 3.3.3

Published CVSS scores

4.6GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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-476NULL Pointer Dereference
T1204.002Malicious File

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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