CVE-2017-3221: Blind SQL injection in Inmarsat AmosConnect 8 login form allows remote attackers to access user credentials, i

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2017-3221 is a critical-severity flaw (CVSS 9.8) affecting amosconnect 8. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Blind SQL injection in Inmarsat AmosConnect 8 login form allows remote attackers to access user credentials, including user names and passwords.

Why this priority

Critical severity
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	3.5% (top 11%)
CISA exploited list	No
Weakness	CWE-89
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 8 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-8 || rpm -q amosconnect-8 || amosconnect-8 --version

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

apt-cache madison amosconnect-8 sudo apt install amosconnect-8=<VERSION_BEFORE_8.0> sudo apt-mark hold amosconnect-8

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

dnf --showduplicates list amosconnect-8 sudo dnf downgrade amosconnect-8-<VERSION_BEFORE_8.0> sudo dnf versionlock add amosconnect-8

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-2017-3221?

amosconnect 8: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-3221 being exploited?

CVE-2017-3221 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-2017-3221 affect?

CVE-2017-3221 affects amosconnect 8. Severity is critical (CVSS 9.8). Blind SQL injection in Inmarsat AmosConnect 8 login form allows remote attackers to access user credentials, including user names and passwords.

How urgent is CVE-2017-3221?

Priority 62/100. Critical severity; Remotely exploitable, no login, no user action

References

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