CVE-2004-0679

CVE-2004-0679 is a medium-severity vulnerability in Unreal Unrealircd 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

Description

The IP cloaking feature (cloak.c) in UnrealIRCd 3.2, and possibly other versions, uses a weak hashing scheme to hide IP addresses, which could allow remote attackers to use brute force methods to gain other user's IP addresses.

Frequently asked questions

What is CVE-2004-0679?
The IP cloaking feature (cloak.c) in UnrealIRCd 3.2, and possibly other versions, uses a weak hashing scheme to hide IP addresses, which could allow remote attackers to use brute force methods to gain other user's IP addresses.
How severe is CVE-2004-0679?
CVE-2004-0679 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0679 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0679?
CVE-2004-0679 primarily affects Unreal Unrealircd. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0679?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0679 published?
CVE-2004-0679 was published on 2004-08-06 and last updated on 2026-06-16.

References

Affected products (4)

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