CVE-2001-0433: Buffer overflow in Savant 3.0 web server allows remote attackers to cause a denial of service, and possibly ex

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HIGH 7.5DOWNGRADE

CVE-2001-0433 is a high-severity flaw (CVSS 7.5) affecting savant webserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Savant 3.0 web server allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long Host HTTP header.

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	1.8% (top 22%)
CISA exploited list	No
Published	2001-06-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: micheal lamont

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

Am I affected?

Timeline

2001-06-18 04:00 UTCPublished CVE record published
2026-06-16 21:54 UTCUpdated Record last modified

micheal lamont savant webserver DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy savant-webserver || rpm -q savant-webserver || savant-webserver --version

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison savant-webserver sudo apt install savant-webserver=<VERSION_BEFORE_3.0> sudo apt-mark hold savant-webserver

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

dnf --showduplicates list savant-webserver sudo dnf downgrade savant-webserver-<VERSION_BEFORE_3.0> sudo dnf versionlock add savant-webserver

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-2001-0433?

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

Is CVE-2001-0433 being exploited?

CVE-2001-0433 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-2001-0433 affect?

CVE-2001-0433 affects savant webserver. Severity is high (CVSS 7.5). Buffer overflow in Savant 3.0 web server allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long Host HTTP header.

How urgent is CVE-2001-0433?

Priority 46/100. High severity

Related CVEs

CVE-2005-2859 MEDIUM 4.6 DOWNGRADE Savant Web Server stores user credentials in plaintext in the Savant\Users registry key, which allows local us
CVE-2005-0338 HIGH 7.5 DOWNGRADE Buffer overflow in Savant Web Server 3.1 allows remote attackers to execute arbitrary code via a long HTTP req
CVE-2002-2146 HIGH 7.5 DOWNGRADE cgitest.exe in Savant Web Server 3.1 and earlier allows remote attackers to cause a denial of service (crash)
CVE-2002-2145 HIGH 7.5 UPGRADE Savant Web Server 3.1 and earlier allows remote attackers to bypass authentication for password protected user
CVE-2002-1828 MEDIUM 5.0 DOWNGRADE Savant Webserver 3.1 allows remote attackers to cause a denial of service (crash) via an HTTP GET request with

References

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