How severe is CVE-2021-27440?

CVE-2021-27440 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-27440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27440?

CVE-2021-27440 affects Ge Reason Dr60 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27440?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-27440 published?

CVE-2021-27440 was published on 2021-03-25 and last updated on 2026-06-17.

CVE-2021-27440

CVE-2021-27440 is a critical-severity vulnerability in Ge Reason Dr60 Firmware with a CVSS 3.x base score of 9.8. 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Ge Reason Dr60 Firmware
Published: 2021-03-25
Last modified: 2026-06-17

Description

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).

Frequently asked questions

What is 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).
How severe is CVE-2021-27440?: CVE-2021-27440 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27440?: CVE-2021-27440 affects Ge Reason Dr60 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27440?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-27440 published?: CVE-2021-27440 was published on 2021-03-25 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-082-03

Affected products (1)

cpe:2.3:o:ge:reason_dr60_firmware:*:*:*:*:*:*:*:*

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