What is CVE-2023-50245?

CVE-2023-50245 is a critical-severity security vulnerability in afichet/openexr-viewer (actions), affecting versions < 0.6.1. It is fixed in 0.6.1.

How severe is CVE-2023-50245?

CVE-2023-50245 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which versions of afichet/openexr-viewer are affected by CVE-2023-50245?

afichet/openexr-viewer (actions) versions < 0.6.1 is affected.

Is there a fix for CVE-2023-50245?

Yes. CVE-2023-50245 is fixed in 0.6.1. Upgrade to this version or later.

Is CVE-2023-50245 exploitable, and should I be worried?

Whether CVE-2023-50245 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2023-50245 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2023-50245 in afichet/openexr-viewer

Q: How severe is CVE-2023-50245?

CVE-2023-50245 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Q: Which versions of afichet/openexr-viewer are affected by CVE-2023-50245?

afichet/openexr-viewer (actions) versions < 0.6.1 is affected.

Q: Is there a fix for CVE-2023-50245?

Yes. CVE-2023-50245 is fixed in 0.6.1. Upgrade to this version or later.

Q: Is CVE-2023-50245 exploitable, and should I be worried?

Whether CVE-2023-50245 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2023-50245 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2023-50245?

Upgrade afichet/openexr-viewer to 0.6.1 or later.

Summary

memory overflow vulnerability in OpenEXR-viewer

Just open this exr file through openexr-viewer.

( poc send by email )

This is windbg log file.

[ POC 2 ]
(8660.7e44): Access violation - code c0000005 (!!! second chance !!!)
openexr_viewer+0x27be4:
00007ff713ff7be4 c744880c0000803f mov dword ptr [rax+rcx*4+0Ch],3F800000h ds:0000020a3ac8000c=????????

Attempt to write the value 1.0 to the memory address 0x20A3AC8000C

[ POC 1 ]
(1404.9264): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
openexr_viewer+0x27be4:
00007ff713ff7be4 c744880c0000803f mov dword ptr [rax+rcx*4+0Ch],3F800000h ds:0000029cb371600c=????????

Attempt to write the value 1.0 to the memory address 0x29CB371600C

Credits
Team : ZeroPointer
이동하 ( Lee Dong Ha of ZeroPointer Lab )
정지민    ( Jeong Jimin of ZeroPointer Lab )
박우진    ( Park Woojin of ZeroPointer Lab )
전우진    ( Jeon Woojin of ZeroPointer Lab )

Impact

CVE-2023-50245 has a CVSS score of 9.8 (Critical). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.6.1); upgrading removes the vulnerable code path.

Affected versions

afichet/openexr-viewer (< 0.6.1)

Security releases

afichet/openexr-viewer → 0.6.1 (actions)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade afichet/openexr-viewer to 0.6.1 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2023-50245? CVE-2023-50245 is a critical-severity security vulnerability in afichet/openexr-viewer (actions), affecting versions < 0.6.1. It is fixed in 0.6.1.
How severe is CVE-2023-50245? CVE-2023-50245 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Which versions of afichet/openexr-viewer are affected by CVE-2023-50245? afichet/openexr-viewer (actions) versions < 0.6.1 is affected.
Is there a fix for CVE-2023-50245? Yes. CVE-2023-50245 is fixed in 0.6.1. Upgrade to this version or later.
Is CVE-2023-50245 exploitable, and should I be worried? Whether CVE-2023-50245 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2023-50245 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2023-50245? Upgrade afichet/openexr-viewer to 0.6.1 or later.