CVE-2019-16879: The Synergy Systems & Solutions (SSS) HUSKY RTU 6049-E70, with firmware Versions 5.0 and prior, has a Missing

Q: How do I fix CVE-2019-16879?

husky rtu 6049-e70 firmware: upgrade to newer than 5.0. Exact commands for each OS are on this page.

Q: Is CVE-2019-16879 being exploited?

CVE-2019-16879 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-2019-16879 affect?

CVE-2019-16879 affects husky rtu 6049-e70 firmware. Severity is critical (CVSS 9.8). The Synergy Systems & Solutions (SSS) HUSKY RTU 6049-E70, with firmware Versions 5.0 and prior, has a Missing Authentication for Critical Function (CWE-306) vulnerability. The affected product does not require authentication for TELNET acce

Q: How urgent is CVE-2019-16879?

Priority 57/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2019-16879 is a critical-severity flaw (CVSS 9.8) affecting husky rtu 6049-e70 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Synergy Systems & Solutions (SSS) HUSKY RTU 6049-E70, with firmware Versions 5.0 and prior, has a Missing Authentication for Critical Function (CWE-306) vulnerability. The affected product does not require authentication for TELNET access, which may allow an attacker to change configuration or perform other malicious activities.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-306
Published	2020-04-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mysyngeryss

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

Am I affected?

Timeline

2020-04-14 17:15 UTCPublished CVE record published
2026-06-17 02:22 UTCUpdated Record last modified

mysyngeryss husky rtu 6049-e70 firmware UPGRADE

Affected: <= 5.0

Fixed in: newer than 5.0

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-2019-16879?

husky rtu 6049-e70 firmware: upgrade to newer than 5.0. Exact commands for each OS are on this page.

Is CVE-2019-16879 being exploited?

CVE-2019-16879 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-2019-16879 affect?

CVE-2019-16879 affects husky rtu 6049-e70 firmware. Severity is critical (CVSS 9.8). The Synergy Systems & Solutions (SSS) HUSKY RTU 6049-E70, with firmware Versions 5.0 and prior, has a Missing Authentication for Critical Function (CWE-306) vulnerability. The affected product does not require authentication for TELNET acce

How urgent is CVE-2019-16879?

Priority 57/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-7802 MEDIUM 5.3 UPGRADE The Synergy Systems & Solutions (SSS) HUSKY RTU 6049-E70, with firmware Versions 5.0 and prior, has an Incorre
CVE-2020-7801 MEDIUM 5.3 UPGRADE The Synergy Systems & Solutions (SSS) HUSKY RTU 6049-E70, with firmware Versions 5.0 and prior, has an Exposur
CVE-2020-7800 HIGH 8.2 UPGRADE The Synergy Systems & Solutions (SSS) HUSKY RTU 6049-E70, with firmware Versions 5.0 and prior, has an Imprope
CVE-2019-20046 CRITICAL 9.8 UPGRADE The Synergy Systems & Solutions PLC & RTU system has a vulnerability in HUSKY RTU 6049-E70 firmware versions 5
CVE-2019-20045 HIGH 7.5 UPGRADE The Synergy Systems & Solutions PLC & RTU system has a vulnerability in HUSKY RTU 6049-E70 firmware versions 5

References

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