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CVE-2021-41121

7.5 · HIGH

Vyper is a Pythonic Smart Contract Language for the EVM.

Published Oct 6, 2021CWE-119EPSS 1.07%

Overview

CVE-2021-41121 is a high-severity vulnerability. It was published on October 6, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Vyper is a Pythonic Smart Contract Language for the EVM. In affected versions when performing a function call inside a literal struct, there is a memory corruption issue that occurs because of an incorrect pointer to the the top of the stack. This issue has been resolved in version 0.3.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/vyperlang/vyper/pull/2447GitHubgithub.com/vyperlang/vyper/security/advisories/GHSA-xv8x-pr4h-73jvGitHubgithub.com/vyperlang/vyper/pull/2447GitHubgithub.com/vyperlang/vyper/security/advisories/GHSA-xv8x-pr4h-73jv

How CyberStrike helps

Frequently asked questions

What is CVE-2021-41121?

CVE-2021-41121 is a high-severity vulnerability. It was published on October 6, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-41121?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-41121?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-41121?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-41121 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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