CVE-2017-16590: This vulnerability allows remote attackers to bypass authentication on vulnerable installations of NetGain Sys

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HIGH 8.8DOWNGRADE

CVE-2017-16590 is a high-severity flaw (CVSS 8.8) affecting enterprise manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This vulnerability allows remote attackers to bypass authentication on vulnerable installations of NetGain Systems Enterprise Manager 7.2.699 build 1001. User interaction is required to exploit this vulnerability. The specific flaw exists within the MainFilter servlet. The issue results from the lack of proper string matching inside the doFilter method. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary c

Why this priority

High severity

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	3.3% (top 11%)
CISA exploited list	No
Weakness	CWE-289, CWE-287
Published	2018-01-23
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: netgain-systems

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

Am I affected?

Timeline

2018-01-23 01:29 UTCPublished CVE record published
2026-06-17 01:09 UTCUpdated Record last modified

netgain-systems enterprise manager DOWNGRADE

Affected: 7.2.699

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.2.699

1. Check installed version

apt-cache policy enterprise-manager || rpm -q enterprise-manager || enterprise-manager --version

2. No fixed release: DOWNGRADE to a release before 7.2.699 (Debian / Ubuntu)

apt-cache madison enterprise-manager sudo apt install enterprise-manager=<VERSION_BEFORE_7.2.699> sudo apt-mark hold enterprise-manager

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

dnf --showduplicates list enterprise-manager sudo dnf downgrade enterprise-manager-<VERSION_BEFORE_7.2.699> sudo dnf versionlock add enterprise-manager

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-2017-16590?

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

Is CVE-2017-16590 being exploited?

CVE-2017-16590 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-2017-16590 affect?

CVE-2017-16590 affects enterprise manager. Severity is high (CVSS 8.8). This vulnerability allows remote attackers to bypass authentication on vulnerable installations of NetGain Systems Enterprise Manager 7.2.699 build 1001. User interaction is required to exploit this vulnerability. The specific flaw exists w

How urgent is CVE-2017-16590?

Priority 53/100. High severity

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References

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