CVE-2021-4480
Local privilege escalation in Dräger Protector Software pre-6.4.2 via insecure FS perms.
Is CVE-2021-4480 being exploited?
Not confirmed. CVE-2021-4480 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.11% probability of exploitation in the next 30 days.
How severe is CVE-2021-4480?
CVE-2021-4480 is rated High with a CVSS score of 8.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2021-4480?
Yes. A fix has been recorded for CVE-2021-4480. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2021-4480 affect?
CVE-2021-4480 affects Dräger Protector Software <=6.4.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2021-4480?
Upgrade to 6.4.2 or later
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local attacker can replace binaries/modules to run code as NT SYSTEM.
Patch when possible
- affected< 6.4.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.