What’s Vulnerable › Vulnerabilities

CVE-2021-28953

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-21 · updated 2026-06-17
• Weakness: CWE-427

Description

The unofficial C/C++ Advanced Lint extension before 1.9.0 for Visual Studio Code allows attackers to execute arbitrary binaries if the user opens a crafted repository.

Affected products

• C/C++ Advanced Lint Project C/C++ Advanced Lint: before 1.9.0 — fixed in 1.9.0

How to fix

Upgrade to a fixed version: C/C++ Advanced Lint Project C/C++ Advanced Lint 1.9.0. Check the vendor advisory for mitigations.

References

• https://github.com/jbenden/vscode-c-cpp-flylint/compare/v1.8.2...v1.9.0
• https://marketplace.visualstudio.com/items?itemName=jbenden.c-cpp-flylint
• https://vuln.ryotak.me/advisories/16
• https://github.com/jbenden/vscode-c-cpp-flylint/compare/v1.8.2...v1.9.0
• https://marketplace.visualstudio.com/items?itemName=jbenden.c-cpp-flylint
• https://vuln.ryotak.me/advisories/16

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