CVE-2020-25193: By having access to the hard-coded cryptographic key for GE Reason RT430, RT431 & RT434 GNSS clocks in firmwar

Q: How do I fix CVE-2020-25193?

rt430 firmware: upgrade to 08a06; rt431 firmware: upgrade to 08a06; rt434 firmware: upgrade to 08a06. Exact commands for each OS are on this page.

Q: Is CVE-2020-25193 being exploited?

CVE-2020-25193 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-25193 affect?

CVE-2020-25193 affects rt430 firmware, rt431 firmware, rt434 firmware. Severity is medium (CVSS 5.3). By having access to the hard-coded cryptographic key for GE Reason RT430, RT431 & RT434 GNSS clocks in firmware versions prior to version 08A06, attackers would be able to intercept and decrypt encrypted traffic through an HTTPS connection.

Q: How urgent is CVE-2020-25193?

Priority 38/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADEUPGRADEUPGRADE

CVE-2020-25193 is a medium-severity flaw (CVSS 5.3) affecting rt430 firmware, rt431 firmware, rt434 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

By having access to the hard-coded cryptographic key for GE Reason RT430, RT431 & RT434 GNSS clocks in firmware versions prior to version 08A06, attackers would be able to intercept and decrypt encrypted traffic through an HTTPS connection.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 42%)
CISA exploited list	No
Weakness	CWE-321, CWE-798
Published	2022-03-18
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: ge

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

Am I affected?

Timeline

2022-03-18 18:15 UTCPublished CVE record published
2026-06-17 03:06 UTCUpdated Record last modified

ge rt430 firmware UPGRADE

Affected: < 08a06

Fixed in: 08a06

Safe to downgrade to: no unaffected older release

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.

ge rt431 firmware UPGRADE

Affected: < 08a06

Fixed in: 08a06

Safe to downgrade to: no unaffected older release

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.

ge rt434 firmware UPGRADE

Affected: < 08a06

Fixed in: 08a06

Safe to downgrade to: no unaffected older release

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-2020-25193?

rt430 firmware: upgrade to 08a06; rt431 firmware: upgrade to 08a06; rt434 firmware: upgrade to 08a06. Exact commands for each OS are on this page.

Is CVE-2020-25193 being exploited?

CVE-2020-25193 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-2020-25193 affect?

CVE-2020-25193 affects rt430 firmware, rt431 firmware, rt434 firmware. Severity is medium (CVSS 5.3). By having access to the hard-coded cryptographic key for GE Reason RT430, RT431 & RT434 GNSS clocks in firmware versions prior to version 08A06, attackers would be able to intercept and decrypt encrypted traffic through an HTTPS connection.

How urgent is CVE-2020-25193?

Priority 38/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-25197 CRITICAL 9.8 UPGRADE UPGRADE A code injection vulnerability exists in one of the webpages in GE Reason RT430, RT431 & RT434 GNSS clocks in
CVE-2020-12017 CRITICAL 9.8 UPGRADE UPGRADE GE Grid Solutions Reason RT Clocks, RT430, RT431, and RT434, all firmware versions prior to 08A05

References

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