CVE-2000-0866: Interbase 6 SuperServer for Linux allows an attacker to cause a denial of service via a query containing 0 byt

Routine

LOW 2.1WATCHLISTDOWNGRADE

CVE-2000-0866 is a low-severity flaw (CVSS 2.1) affecting interbase superserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Interbase 6 SuperServer for Linux allows an attacker to cause a denial of service via a query containing 0 bytes.

Why this priority

On your watchlist

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

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Published	2000-11-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: borland software

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

Am I affected?

Timeline

2000-11-14 05:00 UTCPublished CVE record published
2026-06-16 21:52 UTCUpdated Record last modified

borland software interbase superserver DOWNGRADE

Affected: 6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

1. Check installed version

apt-cache policy interbase-superserver || rpm -q interbase-superserver || interbase-superserver --version

2. No fixed release: DOWNGRADE to a release before 6.0 (Debian / Ubuntu)

apt-cache madison interbase-superserver sudo apt install interbase-superserver=<VERSION_BEFORE_6.0> sudo apt-mark hold interbase-superserver

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

dnf --showduplicates list interbase-superserver sudo dnf downgrade interbase-superserver-<VERSION_BEFORE_6.0> sudo dnf versionlock add interbase-superserver

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-2000-0866?

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

Is CVE-2000-0866 being exploited?

CVE-2000-0866 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-2000-0866 affect?

CVE-2000-0866 affects interbase superserver. Severity is low (CVSS 2.1). Interbase 6 SuperServer for Linux allows an attacker to cause a denial of service via a query containing 0 bytes.

How urgent is CVE-2000-0866?

Priority 21/100. On your watchlist

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References

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