CVE-2020-9027: ELTEX NTP-RG-1402G 1v10 3.25.3.32 devices allow OS command injection via the TRACE field of the resource ping.

This week

CRITICAL 9.8REMOTEMITIGATEMITIGATE

CVE-2020-9027 is a critical-severity flaw (CVSS 9.8) affecting ntp-2 firmware, ntp-rg-1402g firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ELTEX NTP-RG-1402G 1v10 3.25.3.32 devices allow OS command injection via the TRACE field of the resource ping.cmd. The NTP-2 device is also affected.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Weakness	CWE-78
Published	2020-02-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: eltex-co

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

Am I affected?

Timeline

2020-02-17 04:15 UTCPublished CVE record published
2026-06-17 03:27 UTCUpdated Record last modified

eltex-co ntp-2 firmware MITIGATE

Affected: 3.25.1.1226

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.25.1.1226

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.

eltex-co ntp-rg-1402g firmware MITIGATE

Affected: 3.25.3.32

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.25.3.32

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-2020-9027?

ntp-2 firmware: mitigate or apply the listed mitigation; ntp-rg-1402g firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-9027 being exploited?

CVE-2020-9027 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-2020-9027 affect?

CVE-2020-9027 affects ntp-2 firmware, ntp-rg-1402g firmware. Severity is critical (CVSS 9.8). ELTEX NTP-RG-1402G 1v10 3.25.3.32 devices allow OS command injection via the TRACE field of the resource ping.cmd. The NTP-2 device is also affected.

How urgent is CVE-2020-9027?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-9026 CRITICAL 9.8 MITIGATE MITIGATE ELTEX NTP-RG-1402G 1v10 3.25.3.32 devices allow OS command injection via the PING field of the resource ping.c

References

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