How severe is CVE-2021-31477?

CVE-2021-31477 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-31477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31477?

CVE-2021-31477 affects Ge Reason Rpv311 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-31477?

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.

When was CVE-2021-31477 published?

CVE-2021-31477 was published on 2021-06-16 and last updated on 2026-06-17.

CVE-2021-31477

CVE-2021-31477 is a high-severity vulnerability in Ge Reason Rpv311 Firmware with a CVSS 3.x base score of 7.3. 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: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Ge Reason Rpv311 Firmware
Published: 2021-06-16
Last modified: 2026-06-17

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of GE Reason RPV311 14A03. Authentication is not required to exploit this vulnerability. The specific flaw exists within the firmware and filesystem of the device. The firmware and filesystem contain hard-coded default credentials. An attacker can leverage this vulnerability to execute code in the context of the download user. Was ZDI-CAN-11852.

Frequently asked questions

What is CVE-2021-31477?: This vulnerability allows remote attackers to execute arbitrary code on affected installations of GE Reason RPV311 14A03. Authentication is not required to exploit this vulnerability. The specific flaw exists within the firmware and filesystem of the device. The firmware and filesystem contain hard-coded default credentials. An attacker can leverage this vulnerability to execute code in the context of the download user. Was ZDI-CAN-11852.
How severe is CVE-2021-31477?: CVE-2021-31477 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-31477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31477?: CVE-2021-31477 affects Ge Reason Rpv311 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-31477?: 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.
When was CVE-2021-31477 published?: CVE-2021-31477 was published on 2021-06-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:ge:reason_rpv311_firmware:14a03:*:*:*:*:*:*:*

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