How severe is CVE-2004-0983?

CVE-2004-0983 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2004-0983 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0983?

CVE-2004-0983 primarily affects Yukihiro Matsumoto Ruby. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-0983?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2004-0983 published?

CVE-2004-0983 was published on 2005-03-01 and last updated on 2026-06-16.

CVE-2004-0983

CVE-2004-0983 is a medium-severity vulnerability in Yukihiro Matsumoto Ruby with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Yukihiro Matsumoto Ruby
Published: 2005-03-01
Last modified: 2026-06-16

Description

The CGI module in Ruby 1.6 before 1.6.8, and 1.8 before 1.8.2, allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certain HTTP request.

Frequently asked questions

What is CVE-2004-0983?: The CGI module in Ruby 1.6 before 1.6.8, and 1.8 before 1.8.2, allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certain HTTP request.
How severe is CVE-2004-0983?: CVE-2004-0983 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0983 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0983?: CVE-2004-0983 primarily affects Yukihiro Matsumoto Ruby. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0983?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0983 published?: CVE-2004-0983 was published on 2005-03-01 and last updated on 2026-06-16.

References

Affected products (17)

cpe:2.3:a:yukihiro_matsumoto:ruby:1.6:*:*:*:*:*:*:*
cpe:2.3:a:yukihiro_matsumoto:ruby:1.6.7:*:*:*:*:*:*:*
cpe:2.3:a:yukihiro_matsumoto:ruby:1.8:*:*:*:*:*:*:*
cpe:2.3:a:yukihiro_matsumoto:ruby:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:yukihiro_matsumoto:ruby:1.8.2_pre1:*:*:*:*:*:*:*
cpe:2.3:a:yukihiro_matsumoto:ruby:1.8.2_pre2:*:*:*:*:*:*:*
cpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:9.2:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:9.2:*:amd64:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:10.0:*:amd64:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:10.1:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux:10.1:*:x86_64:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux_corporate_server:2.1:*:*:*:*:*:*:*
cpe:2.3:o:mandrakesoft:mandrake_linux_corporate_server:2.1:*:x86_64:*:*:*:*:*
cpe:2.3:o:ubuntu:ubuntu_linux:4.1:*:ia64:*:*:*:*:*
cpe:2.3:o:ubuntu:ubuntu_linux:4.1:*:ppc:*:*:*:*:*

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