CVE-2021-31477: This vulnerability allows remote attackers to execute arbitrary code on affected installations of GE Reason RP

This month

HIGH 7.3REMOTEMITIGATE

CVE-2021-31477 is a high-severity flaw (CVSS 7.3) affecting reason rpv311 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.6% (top 14%)
CISA exploited list	No
Weakness	CWE-798
Published	2021-06-16
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: ge

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-06-16 23:15 UTCPublished CVE record published
2026-06-17 03:51 UTCUpdated Record last modified

ge reason rpv311 firmware MITIGATE

Affected: 14a03

Fixed in: no fixed release known

Safe to downgrade to: a release before 14a03

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-31477?

reason rpv311 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-31477 being exploited?

CVE-2021-31477 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-31477 affect?

CVE-2021-31477 affects reason rpv311 firmware. Severity is high (CVSS 7.3). 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 filesys

How urgent is CVE-2021-31477?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

References

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