Local Privilege Escalation in Dräger Protector Software
CVE-2021-4481

8.3HIGH

Key Information:

Vendor

Dräger

Status
Protector Software
Vendor
CVE Published:
2 June 2026

What is CVE-2021-4481?

Dräger Protector Software versions prior to 6.4.2 are susceptible to a local privilege escalation due to improper file system permissions. This vulnerability enables local attackers to gain higher privileges, allowing them to execute arbitrary code by replacing executable files or modules on the system with those that can run under NT SYSTEM privileges. This security flaw poses significant risks as it could be exploited to manipulate critical system operations.

Affected Version(s)

Protector Software 0 < 6.4.2

References

https://static.draeger.com/security
vendor-advisory
https://www.vulncheck.com/advisories/dr-ger-protector-sof...
third-party-advisory

CVSS V4

Score:
8.3
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mario Ceballos
.