CVE-2017-3222: Hard-coded credentials in AmosConnect 8 allow remote attackers to gain full administrative privileges, includi

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2017-3222 is a critical-severity flaw (CVSS 9.8) affecting amosconnect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Hard-coded credentials in AmosConnect 8 allow remote attackers to gain full administrative privileges, including the ability to execute commands on the Microsoft Windows host platform with SYSTEM privileges by abusing AmosConnect Task Manager.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
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	7.4% (top 6%)
CISA exploited list	No
Weakness	CWE-798
Published	2017-07-22
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: inmarsat

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

Am I affected?

Timeline

2017-07-22 20:29 UTCPublished CVE record published
2026-06-17 01:17 UTCUpdated Record last modified

inmarsat amosconnect DOWNGRADE

Affected: 8.0 · 8.0.1 · 8.0.2 · 8.2.0 · 8.2.1 · 8.2.2 · 8.3.0 · 8.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

1. Check installed version

apt-cache policy amosconnect || rpm -q amosconnect || amosconnect --version

2. No fixed release: DOWNGRADE to a release before 8.0 (Debian / Ubuntu)

apt-cache madison amosconnect sudo apt install amosconnect=<VERSION_BEFORE_8.0> sudo apt-mark hold amosconnect

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list amosconnect sudo dnf downgrade amosconnect-<VERSION_BEFORE_8.0> sudo dnf versionlock add amosconnect

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2017-3222?

amosconnect: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-3222 being exploited?

CVE-2017-3222 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-2017-3222 affect?

CVE-2017-3222 affects amosconnect. Severity is critical (CVSS 9.8). Hard-coded credentials in AmosConnect 8 allow remote attackers to gain full administrative privileges, including the ability to execute commands on the Microsoft Windows host platform with SYSTEM privileges by abusing AmosConnect Task Manag

How urgent is CVE-2017-3222?

Priority 63/100. Critical severity; EPSS top 6%: very likely to be exploited; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

References

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