What’s Vulnerable › Vulnerabilities

CVE-2021-27376

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-02-18 · updated 2026-06-17
• Weakness: CWE-119

Description

An issue was discovered in the nb-connect crate before 1.0.3 for Rust. It may have invalid memory access for certain versions of the standard library because it relies on a direct cast of std::net::SocketAddrV4 and std::net::SocketAddrV6 data structures.

Affected products

• Nb-Connect Project Nb-Connect: before 1.0.3 — fixed in 1.0.3

How to fix

Upgrade to a fixed version: Nb-Connect Project Nb-Connect 1.0.3. Check the vendor advisory for mitigations.

References

• https://rustsec.org/advisories/RUSTSEC-2021-0021.html
• https://rustsec.org/advisories/RUSTSEC-2021-0021.html

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