CVE-2017-7977: The Screensavercc component in eLux RP before 5.5.0 allows attackers to bypass intended configuration restrict

Q: How do I fix CVE-2017-7977?

elux: upgrade to 5.5.0. Exact commands for each OS are on this page.

Q: Is CVE-2017-7977 being exploited?

CVE-2017-7977 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-2017-7977 affect?

CVE-2017-7977 affects elux. Severity is critical (CVSS 9.8). The Screensavercc component in eLux RP before 5.5.0 allows attackers to bypass intended configuration restrictions and execute arbitrary commands with root privileges by inserting commands in a local configuration dialog in the control pane

Q: How urgent is CVE-2017-7977?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2017-7977 is a critical-severity flaw (CVSS 9.8) affecting elux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Screensavercc component in eLux RP before 5.5.0 allows attackers to bypass intended configuration restrictions and execute arbitrary commands with root privileges by inserting commands in a local configuration dialog in the control panel.

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	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-77
Published	2017-07-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: unicon-software

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

Am I affected?

Timeline

2017-07-19 18:29 UTCPublished CVE record published
2026-06-17 01:25 UTCUpdated Record last modified

unicon-software elux UPGRADE

Affected: < 5.5.0

Fixed in: 5.5.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 5.5.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade elux

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade elux

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2017-7977?

elux: upgrade to 5.5.0. Exact commands for each OS are on this page.

Is CVE-2017-7977 being exploited?

CVE-2017-7977 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-2017-7977 affect?

CVE-2017-7977 affects elux. Severity is critical (CVSS 9.8). The Screensavercc component in eLux RP before 5.5.0 allows attackers to bypass intended configuration restrictions and execute arbitrary commands with root privileges by inserting commands in a local configuration dialog in the control pane

How urgent is CVE-2017-7977?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

References

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