Which versions of openh264-sys2 are affected by GHSA-5PMW-9J92-3C4C?

openh264-sys2 (rust) versions < 0.8.0 is affected.

Is there a fix for GHSA-5PMW-9J92-3C4C?

Yes. GHSA-5PMW-9J92-3C4C is fixed in 0.8.0. Upgrade to this version or later.

Is GHSA-5PMW-9J92-3C4C exploitable, and should I be worried?

Whether GHSA-5PMW-9J92-3C4C 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 GHSA-5PMW-9J92-3C4C 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.

GHSA-5PMW-9J92-3C4C in openh264-sys2

Q: What is GHSA-5PMW-9J92-3C4C?

GHSA-5PMW-9J92-3C4C is a high-severity security vulnerability in openh264-sys2 (rust), affecting versions < 0.8.0. It is fixed in 0.8.0.

Q: Is there a fix for GHSA-5PMW-9J92-3C4C?

Yes. GHSA-5PMW-9J92-3C4C is fixed in 0.8.0. Upgrade to this version or later.

Q: Is GHSA-5PMW-9J92-3C4C exploitable, and should I be worried?

Whether GHSA-5PMW-9J92-3C4C 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 GHSA-5PMW-9J92-3C4C 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 GHSA-5PMW-9J92-3C4C?

Upgrade openh264-sys2 to 0.8.0 or later.

GHSA-5PMW-9J92-3C4C

GHSA-5PMW-9J92-3C4C is a high-severity security vulnerability in openh264-sys2 (rust), affecting versions < 0.8.0. It is fixed in 0.8.0.

Does this CVE actually affect you?

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Runtime intelligence, not another scanner.

Summary

OpenH264 Rust API Openh264 Decoding Functions Heap Overflow Vulnerability

OpenH264 recently reported a heap overflow that was fixed in upstream 63db555 and integrated into our 0.6.6 release. For users relying on Cisco's pre-compiled DLL, we also published 0.8.0, which is compatible with their latest fixed DLL version 2.6.0.

In other words:

if you rely on our source feature only, >=0.6.6 should be safe,
if you rely on libloading, you must upgrade to 0.8.0 and use their latest DLL >=2.6.0.

Users handling untrusted video files should update immediately.

Impact

Affected versions

openh264-sys2 (< 0.8.0)

Security releases

openh264-sys2 → 0.8.0 (rust)

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 openh264-sys2 to 0.8.0 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 GHSA-5PMW-9J92-3C4C? GHSA-5PMW-9J92-3C4C is a high-severity security vulnerability in openh264-sys2 (rust), affecting versions < 0.8.0. It is fixed in 0.8.0.
Which versions of openh264-sys2 are affected by GHSA-5PMW-9J92-3C4C? openh264-sys2 (rust) versions < 0.8.0 is affected.
Is there a fix for GHSA-5PMW-9J92-3C4C? Yes. GHSA-5PMW-9J92-3C4C is fixed in 0.8.0. Upgrade to this version or later.
Is GHSA-5PMW-9J92-3C4C exploitable, and should I be worried? Whether GHSA-5PMW-9J92-3C4C 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 GHSA-5PMW-9J92-3C4C 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 GHSA-5PMW-9J92-3C4C? Upgrade openh264-sys2 to 0.8.0 or later.