What is CVE-2021-31477?

CVE-2021-31477 is a high-severity vulnerability in Ge Reason Rpv311, classified under Use of Hard-coded Credentials. CVSS score: 7.3/10. Published 2021-06-16.

How severe is CVE-2021-31477?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Ge Reason Rpv311

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.

Published 2021-06-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.026 (85.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Ge Reason Rpv311 — versions 14A03
Ge Reason Rpv311 Firmware — versions 14a03
Ge Rpv311

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.zerodayinitiative.com/advisories/ZDI-21-616/ (VDB Entry, Third Party Advisory)
www.gegridsolutions.com/products/support/GES-2021-005 - RPV311 Security Notice… (Vendor Advisory)

Frequently asked questions

What is CVE-2021-31477?: CVE-2021-31477 is a high-severity vulnerability in Ge Reason Rpv311, classified under Use of Hard-coded Credentials. CVSS score: 7.3/10. Published 2021-06-16.
How severe is CVE-2021-31477?: High severity. CVSS v3 base score is 7.3 out of 10.