CVE-2021-38196

An issue was discovered in the better-macro crate through 2021-07-22 for Rust

published August 8, 2021

CVSS
—
EPSS
3%
Percentile
85.0
In the wild
Unconfirmed
What it is

⚠️ A crafty demonstration in the better-macro crate reveals a way for remote attackers to execute arbitrary code without any legitimate use—yikes! 💻 This flaw is like a magician's trick gone wrong, where the audience is handed a wand that actually casts spells instead of illusions—somebody could summon unwanted chaos! ✨ If exploited, an attacker could run malicious code on your system, potentially compromising data or causing disruptions. The risks are there, even if it hasn’t been widely exploited yet—think of it as a secret trap door in a seemingly safe environment. 🔥

Put simply

This flaw is like a magician's trick gone wrong, where the audience is handed a wand that actually casts spells instead of illusions—somebody could summon unwanted chaos! ✨ The vulnerability in the better-macro crate allows remote attackers to leverage proc-macros for executing arbitrary code, exploiting a loophole that should only serve legitimate purposes.

What to do

If exploited, an attacker could run malicious code on your system, potentially compromising data or causing disruptions. The risks are there, even if it hasn’t been widely exploited yet—think of it as a secret trap door in a seemingly safe environment. 🔥 To safeguard your applications, review and update to the latest version of the better-macro crate. Ensure you're monitoring dependencies particularly for any malicious activities. Stay alert and audit your codebase! 🦸 You've got this! By taking these steps, you can help keep your applications secure and your users safe. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02567 · 85.0th percentile
Published
2021-08-08T05:07Z
EPSS history
Timeline
  • 08 AUG 05:07Z
    An issue was discovered in the better-macro crate through 2021-07-22 for Rust
    cvelistv5