What’s Vulnerable › Vulnerabilities

CVE-2021-27448

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-25 · updated 2026-06-17
• Weakness: CWE-250

Description

A miscommunication in the file system allows adversaries with access to the MU320E to escalate privileges on the MU320E (all firmware versions prior to v04A00.1).

Affected products

• MU320E: before 04a00.1 — fixed in 04a00.1

How to fix

Upgrade to a fixed version: MU320E 04a00.1. Check the vendor advisory for mitigations.

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-082-02
• https://us-cert.cisa.gov/ics/advisories/icsa-21-082-02

Get alerted when CVE-2021-27448 or the next vulnerability affects your stack