What is GHSA-CF4G-FCF8-3CR9?

GHSA-CF4G-FCF8-3CR9 is a medium-severity security vulnerability in pnet_packet (rust), affecting versions < 0.27.2. It is fixed in 0.27.2.

How severe is GHSA-CF4G-FCF8-3CR9?

GHSA-CF4G-FCF8-3CR9 has a CVSS score of 6.0 (Medium). 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 pnet_packet are affected by GHSA-CF4G-FCF8-3CR9?

pnet_packet (rust) versions < 0.27.2 is affected.

Is there a fix for GHSA-CF4G-FCF8-3CR9?

Yes. GHSA-CF4G-FCF8-3CR9 is fixed in 0.27.2. Upgrade to this version or later.

Is GHSA-CF4G-FCF8-3CR9 exploitable, and should I be worried?

Whether GHSA-CF4G-FCF8-3CR9 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-CF4G-FCF8-3CR9 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-CF4G-FCF8-3CR9 in pnet_packet

Q: How severe is GHSA-CF4G-FCF8-3CR9?

GHSA-CF4G-FCF8-3CR9 has a CVSS score of 6.0 (Medium). 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 pnet_packet are affected by GHSA-CF4G-FCF8-3CR9?

pnet_packet (rust) versions < 0.27.2 is affected.

Q: Is there a fix for GHSA-CF4G-FCF8-3CR9?

Yes. GHSA-CF4G-FCF8-3CR9 is fixed in 0.27.2. Upgrade to this version or later.

Q: Is GHSA-CF4G-FCF8-3CR9 exploitable, and should I be worried?

Whether GHSA-CF4G-FCF8-3CR9 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-CF4G-FCF8-3CR9 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-CF4G-FCF8-3CR9?

Upgrade pnet_packet to 0.27.2 or later.

Summary

pnetpacket buffer overrun in setpayload setters

As indicated by this issue, a buffer overrun is possible in the set_payload setter of the various mutable "Packet" struct setters. The offending set_payload functions were defined within the struct impl blocks in earlier versions of the package, and later by the packet macro.

Fixed in the packet macro by this PR.

Impact

GHSA-CF4G-FCF8-3CR9 has a CVSS score of 6.0 (Medium). The vector is requires local access, high 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 (0.27.2); upgrading removes the vulnerable code path.

Affected versions

pnet_packet (< 0.27.2)

Security releases

pnet_packet → 0.27.2 (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 pnet_packet to 0.27.2 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-CF4G-FCF8-3CR9? GHSA-CF4G-FCF8-3CR9 is a medium-severity security vulnerability in pnet_packet (rust), affecting versions < 0.27.2. It is fixed in 0.27.2.
How severe is GHSA-CF4G-FCF8-3CR9? GHSA-CF4G-FCF8-3CR9 has a CVSS score of 6.0 (Medium). 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 pnet_packet are affected by GHSA-CF4G-FCF8-3CR9? pnet_packet (rust) versions < 0.27.2 is affected.
Is there a fix for GHSA-CF4G-FCF8-3CR9? Yes. GHSA-CF4G-FCF8-3CR9 is fixed in 0.27.2. Upgrade to this version or later.
Is GHSA-CF4G-FCF8-3CR9 exploitable, and should I be worried? Whether GHSA-CF4G-FCF8-3CR9 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-CF4G-FCF8-3CR9 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-CF4G-FCF8-3CR9? Upgrade pnet_packet to 0.27.2 or later.