CVE-2023-50245Network attack vector

Application crash via overflowing framebuffer dimensions

Published Dec 11, 2023 · Updated Aug 2, 2024

Buffer overflow in afichet OpenEXR Viewer before 0.6.1 allows context-dependent attackers to crash the application via a crafted EXR file. RGBFramebufferModel and YFramebufferModel multiply untrusted 32-bit image dimensions when sizing frame buffers without first checking for integer overflow. The file must be opened in the desktop viewer; the published proof demonstrates an out-of-bounds write and access-violation crash, while code execution is not established.

CVSS severity9.8
Critical
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Buffer overflow in afichet OpenEXR Viewer before 0.6.1 allows context-dependent attackers to crash the application via a crafted EXR file. RGBFramebufferModel and YFramebufferModel multiply untrusted 32-bit image dimensions when sizing frame buffers without first checking for integer overflow. The file must be opened in the desktop viewer; the published proof demonstrates an out-of-bounds write and access-violation crash, while code execution is not established.

The record

CVE
CVE-2023-50245
Published
Dec 11, 2023
Updated
Aug 2, 2024
Vendor
afichet
Product
OpenEXR Viewer
Classifications
CWE-120, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.6.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

afichet · OpenEXR Viewerversion=< 0.6.1

Published CVSS scores

9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo