CVE-2005-0451: Sami HTTP Server 1.0.5 allows remote attackers to cause a denial of service via an HTTP request containing two

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MEDIUM 5.0DOWNGRADE

CVE-2005-0451 is a medium-severity flaw (CVSS 5.0) affecting sami http server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sami HTTP Server 1.0.5 allows remote attackers to cause a denial of service via an HTTP request containing two CRLF sequences, which triggers a NULL dereference.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sami

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

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:11 UTCUpdated Record last modified

sami sami http server DOWNGRADE

Affected: 1.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.5

1. Check installed version

apt-cache policy sami-http-server || rpm -q sami-http-server || sami-http-server --version

2. No fixed release: DOWNGRADE to a release before 1.0.5 (Debian / Ubuntu)

apt-cache madison sami-http-server sudo apt install sami-http-server=<VERSION_BEFORE_1.0.5> sudo apt-mark hold sami-http-server

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

dnf --showduplicates list sami-http-server sudo dnf downgrade sami-http-server-<VERSION_BEFORE_1.0.5> sudo dnf versionlock add sami-http-server

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-2005-0451?

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

Is CVE-2005-0451 being exploited?

CVE-2005-0451 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-2005-0451 affect?

CVE-2005-0451 affects sami http server. Severity is medium (CVSS 5.0). Sami HTTP Server 1.0.5 allows remote attackers to cause a denial of service via an HTTP request containing two CRLF sequences, which triggers a NULL dereference.

How urgent is CVE-2005-0451?

Priority 42/100. Public exploit reference

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CVE-2005-0450 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in Sami HTTP Server 1.0.5 allows remote attackers to read arbitrary files vi
CVE-2004-0292 HIGH 10.0 DOWNGRADE Buffer overflow in KarjaSoft Sami HTTP Server 1.0.4 allows remote attackers to cause a denial of service (cras

References

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