What is CVE-2021-27440?

CVE-2021-27440 is a critical-severity vulnerability in Ge Reason Dr60, classified under Use of Hard-coded Password. CVSS score: 9.8/10. Published 2021-03-25.

How severe is CVE-2021-27440?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Ge Reason Dr60

CVE-2021-27440

The software contains a hard-coded password it uses for its own inbound authentication or for outbound communication to external components on the Reason DR60 (all firmware versions prior to 02A04.1).

Published 2021-03-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (70.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Ge Reason Dr60
Ge Reason Dr60 Firmware
Reason Dr60 — versions All firmware versions prior to 02A04.1

Weakness classification (CWE)

References

us-cert.cisa.gov/ics/advisories/icsa-21-082-03 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2021-27440?: CVE-2021-27440 is a critical-severity vulnerability in Ge Reason Dr60, classified under Use of Hard-coded Password. CVSS score: 9.8/10. Published 2021-03-25.
How severe is CVE-2021-27440?: Critical severity. CVSS v3 base score is 9.8 out of 10.