CVE-2006-3663: Finjan Vital Security Appliance 5100/8100 NG 8.3.5 stores passwords in plaintext in a backup file, which allow

Routine

MEDIUM 4.6DOWNGRADE

CVE-2006-3663 is a medium-severity flaw (CVSS 4.6) affecting vital security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Finjan Vital Security Appliance 5100/8100 NG 8.3.5 stores passwords in plaintext in a backup file, which allows local users to gain privileges. NOTE: the vendor has notified CVE that this issue was fixed in 8.3.6.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.6 (Medium)
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Published	2006-07-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: finjan

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-07-18 15:47 UTCPublished CVE record published
2026-06-16 22:27 UTCUpdated Record last modified

finjan vital security DOWNGRADE

Affected: ng-5100_8.3.5 · ng-8100_8.3.5

Fixed in: no fixed release known

Safe to downgrade to: a release before ng-5100_8.3.5

1. Check installed version

apt-cache policy vital-security || rpm -q vital-security || vital-security --version

2. No fixed release: DOWNGRADE to a release before ng-5100_8.3.5 (Debian / Ubuntu)

apt-cache madison vital-security sudo apt install vital-security=<VERSION_BEFORE_ng-5100_8.3.5> sudo apt-mark hold vital-security

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

dnf --showduplicates list vital-security sudo dnf downgrade vital-security-<VERSION_BEFORE_ng-5100_8.3.5> sudo dnf versionlock add vital-security

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-2006-3663?

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

Is CVE-2006-3663 being exploited?

CVE-2006-3663 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-2006-3663 affect?

CVE-2006-3663 affects vital security. Severity is medium (CVSS 4.6). Finjan Vital Security Appliance 5100/8100 NG 8.3.5 stores passwords in plaintext in a backup file, which allows local users to gain privileges. NOTE: the vendor has notified CVE that this issue was fixed in 8.3.6.

How urgent is CVE-2006-3663?

Priority 30/100. Public exploit reference

References

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