CVE-2021-4481: Dräger Protector Software Local Privilege Escalation via Insecure File Permissions

Severity: high (CVSS 8.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-02 · updated 2026-07-22
Weakness: CWE-732

Description

Dräger Protector Software prior to version 6.4.2 contains a local privilege escalation vulnerability due to insecure file system permissions that allows local attackers to execute arbitrary code with elevated privileges. Attackers can replace binaries or loaded modules on the host system to execute code with NT SYSTEM privileges.

Affected products

Dräger Protector Software: before 6.4.2 — fixed in 6.4.2

How to fix

Upgrade to a fixed version: Dräger Protector Software 6.4.2. Check the vendor advisory for mitigations.

References

https://static.draeger.com/security/download/2021-267-01-Draeger-Protector-Software-vulnerabilities.pdf
https://www.vulncheck.com/advisories/dr-ger-protector-software-local-privilege-escalation-via-insecure-file-permissions

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