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CVE-2004-0983

15
FAUCET Score

CVE-2004-0983 describes a denial-of-service vulnerability in the CGI module of Ruby versions 1.6 prior to 1.6.8 and 1.8 prior to 1.8.2, affecting products like Gentoo, Mandrakesoft, Ubuntu, and Yukihiro Matsumoto's Ruby. A remote attacker can exploit this by sending a specially crafted HTTP request, leading to an infinite loop and high CPU consumption. Rated with a CVSS score of 5.0, this vulnerability has a low attack complexity and requires no authentication, but its impact is limited to availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.6CPE matchmatch criteria
cpe:2.3:a:yukihiro_matsumoto:ruby:1.6:*:*:*:*:*:*:*
1.6.7CPE matchmatch criteria
cpe:2.3:a:yukihiro_matsumoto:ruby:1.6.7:*:*:*:*:*:*:*
1.8CPE matchmatch criteria
cpe:2.3:a:yukihiro_matsumoto:ruby:1.8:*:*:*:*:*:*:*
1.8.1CPE matchmatch criteria
cpe:2.3:a:yukihiro_matsumoto:ruby:1.8.1:*:*:*:*:*:*:*
1.8.2_pre1CPE matchmatch criteria
cpe:2.3:a:yukihiro_matsumoto:ruby:1.8.2_pre1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.90%
Probability of exploitation in next 30 days
EPSS Percentile
77.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0190 is in the 65th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: ruby-0:1.6.8-9.EL3.3
View patch

Vendor Advisories (1)

redhatCVE-2004-0983

security flaw

Nov 8, 2004

References

exchange.xforce.ibmcloud.com / vulnerabilities/17985
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10268
usn.ubuntu.com / 20-1
debian.org / security/2004/dsa-586
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2004-635.html
securityfocus.com / bid/11618
PatchVendor Advisory