What is CVE-2019-10764?

CVE-2019-10764 is a high-severity security vulnerability in simplito/elliptic-php (composer), affecting versions < 1.0.6. It is fixed in 1.0.6.

How severe is CVE-2019-10764?

CVE-2019-10764 has a CVSS score of 7.4 (High). 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 simplito/elliptic-php are affected by CVE-2019-10764?

simplito/elliptic-php (composer) versions < 1.0.6 is affected.

Is there a fix for CVE-2019-10764?

Yes. CVE-2019-10764 is fixed in 1.0.6. Upgrade to this version or later.

Is CVE-2019-10764 exploitable, and should I be worried?

Whether CVE-2019-10764 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-2019-10764 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-2019-10764 in simplito/elliptic-php

Q: How severe is CVE-2019-10764?

CVE-2019-10764 has a CVSS score of 7.4 (High). 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 simplito/elliptic-php are affected by CVE-2019-10764?

simplito/elliptic-php (composer) versions < 1.0.6 is affected.

Q: Is there a fix for CVE-2019-10764?

Yes. CVE-2019-10764 is fixed in 1.0.6. Upgrade to this version or later.

Q: Is CVE-2019-10764 exploitable, and should I be worried?

Whether CVE-2019-10764 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-2019-10764 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-2019-10764?

Upgrade simplito/elliptic-php to 1.0.6 or later.

Summary

Timing attacks might allow practical recovery of the long-term private key

In elliptic-php versions priot to 1.0.6, Timing attacks might be possible which can result in practical recovery of the long-term private key generated by the library under certain conditions. Leakage of a bit-length of the scalar during scalar multiplication is possible on an elliptic curve which might allow practical recovery of the long-term private key.

Impact

CVE-2019-10764 has a CVSS score of 7.4 (High). 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 (1.0.6); upgrading removes the vulnerable code path.

Affected versions

simplito/elliptic-php (< 1.0.6)

Security releases

simplito/elliptic-php → 1.0.6 (composer)

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 simplito/elliptic-php to 1.0.6 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-2019-10764? CVE-2019-10764 is a high-severity security vulnerability in simplito/elliptic-php (composer), affecting versions < 1.0.6. It is fixed in 1.0.6.
How severe is CVE-2019-10764? CVE-2019-10764 has a CVSS score of 7.4 (High). 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 simplito/elliptic-php are affected by CVE-2019-10764? simplito/elliptic-php (composer) versions < 1.0.6 is affected.
Is there a fix for CVE-2019-10764? Yes. CVE-2019-10764 is fixed in 1.0.6. Upgrade to this version or later.
Is CVE-2019-10764 exploitable, and should I be worried? Whether CVE-2019-10764 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-2019-10764 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-2019-10764? Upgrade simplito/elliptic-php to 1.0.6 or later.