CVE-2020-17494: Untangle Firewall NG before 16.0 uses MD5 for passwords.

Q: How do I fix CVE-2020-17494?

untangle firewall ng: upgrade to 16.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-17494 being exploited?

CVE-2020-17494 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-2020-17494 affect?

CVE-2020-17494 affects untangle firewall ng. Severity is medium (CVSS 5.3). Untangle Firewall NG before 16.0 uses MD5 for passwords.

Q: How urgent is CVE-2020-17494?

Priority 38/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2020-17494 is a medium-severity flaw (CVSS 5.3) affecting untangle firewall ng. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Untangle Firewall NG before 16.0 uses MD5 for passwords.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-326
Published	2020-11-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: untangle

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

Am I affected?

Timeline

2020-11-12 21:15 UTCPublished CVE record published
2026-06-17 02:59 UTCUpdated Record last modified

untangle untangle firewall ng UPGRADE

Affected: < 16.0

Fixed in: 16.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy untangle-firewall-ng || rpm -q untangle-firewall-ng || untangle-firewall-ng --version

2. UPGRADE to 16.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade untangle-firewall-ng

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade untangle-firewall-ng

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-2020-17494?

untangle firewall ng: upgrade to 16.0. Exact commands for each OS are on this page.

Is CVE-2020-17494 being exploited?

CVE-2020-17494 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-2020-17494 affect?

CVE-2020-17494 affects untangle firewall ng. Severity is medium (CVSS 5.3). Untangle Firewall NG before 16.0 uses MD5 for passwords.

How urgent is CVE-2020-17494?

Priority 38/100. Remotely exploitable, no login, no user action

References

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