CVE-2021-4478
CVE-2021-4478 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.2)
- CVSS v4: 8.3
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2021-34844
- Weakness: CWE-787
- Published:
- Last modified:
Description
Dräger CC-Vision Basic before 7.5.3 and Dräger CC-Vision E-Cal before 7.2.5.0 contain an out-of-bounds write vulnerability when loading .gdt files. A crafted .gdt file can trigger a buffer overflow during file parsing, allowing an attacker to crash the application or execute malicious code on the underlying system.
Frequently asked questions
- What is CVE-2021-4478?
- Dräger CC-Vision Basic before 7.5.3 and Dräger CC-Vision E-Cal before 7.2.5.0 contain an out-of-bounds write vulnerability when loading .gdt files. A crafted .gdt file can trigger a buffer overflow during file parsing, allowing an attacker to crash the application or execute malicious code on the underlying system.
- How severe is CVE-2021-4478?
- CVE-2021-4478 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2021-4478 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2021-4478?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2021-4478 have an EU (EUVD) identifier?
- Yes. CVE-2021-4478 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34844.
- When was CVE-2021-4478 published?
- CVE-2021-4478 was published on 2026-06-02 and last updated on 2026-06-17.
References
- https://static.draeger.com/security/download/2021-03-02-PSA-21-061-1-CC-Vision-Product-Security-Advisory.pdf
- https://www.vulncheck.com/advisories/dr-ger-cc-vision-basic-and-cc-vision-e-cal-out-of-bounds-write-via-malicious-gdt-file
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