CVE-1999-1047: When BSDI patches for Gauntlet 5.0 BSDI are installed in a particular order, Gauntlet allows remote attackers

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HIGH 7.5DOWNGRADE

CVE-1999-1047 is a high-severity flaw (CVSS 7.5) affecting gauntlet. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

When BSDI patches for Gauntlet 5.0 BSDI are installed in a particular order, Gauntlet allows remote attackers to bypass firewall access restrictions, and does not log the activities.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	1999-10-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: bsdi

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

Am I affected?

Timeline

1999-10-18 04:00 UTCPublished CVE record published
2026-06-16 21:49 UTCUpdated Record last modified

bsdi gauntlet DOWNGRADE

Affected: 5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.0 (Debian / Ubuntu)

apt-cache madison gauntlet sudo apt install gauntlet=<VERSION_BEFORE_5.0> sudo apt-mark hold gauntlet

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

dnf --showduplicates list gauntlet sudo dnf downgrade gauntlet-<VERSION_BEFORE_5.0> sudo dnf versionlock add gauntlet

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-1999-1047?

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

Is CVE-1999-1047 being exploited?

CVE-1999-1047 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-1999-1047 affect?

CVE-1999-1047 affects gauntlet. Severity is high (CVSS 7.5). When BSDI patches for Gauntlet 5.0 BSDI are installed in a particular order, Gauntlet allows remote attackers to bypass firewall access restrictions, and does not log the activities.

How urgent is CVE-1999-1047?

Priority 45/100. High severity

References

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