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CVE-2004-0679

15
FAUCET Score

CVE-2004-0679 describes a weakness in the IP cloaking feature of UnrealIRCd 3.2 and potentially other versions, where a weak hashing scheme could allow remote attackers to brute force and discover other users' IP addresses. This vulnerability has a CVSS score of 5.0, indicating a medium severity, as it requires no authentication and has a low attack complexity, primarily impacting confidentiality. Despite its potential to expose user IP addresses, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.1.1CPE matchmatch criteria
cpe:2.3:a:unreal:unrealircd:3.1.1:*:*:*:*:*:*:*
3.1.3CPE matchmatch criteria
cpe:2.3:a:unreal:unrealircd:3.1.3:*:*:*:*:*:*:*
3.2CPE matchmatch criteria
cpe:2.3:a:unreal:unrealircd:3.2:*:*:*:*:*:*:*
3.2_.0_beta_10CPE matchmatch criteria
cpe:2.3:a:unreal:unrealircd:3.2_.0_beta_10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 56th percentile among its peer group of 23,701 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

Remediation records are not available for this CVE.

References

marc.info
securityreason.com / securityalert/560
exchange.xforce.ibmcloud.com / vulnerabilities/16610
bandecon.com / advisory/unreal.txt
securityfocus.com / bid/10663
PatchVendor Advisory
unrealircd.com