CVE-2004-0084

CVE-2004-0084 is a critical-severity vulnerability in Xfree86 Project X11r6 with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflow in the ReadFontAlias function in XFree86 4.1.0 to 4.3.0, when using the CopyISOLatin1Lowered function, allows local or remote authenticated users to execute arbitrary code via a malformed entry in the font alias (font.alias) file, a different vulnerability than CVE-2004-0083 and CVE-2004-0106.

Frequently asked questions

What is CVE-2004-0084?
Buffer overflow in the ReadFontAlias function in XFree86 4.1.0 to 4.3.0, when using the CopyISOLatin1Lowered function, allows local or remote authenticated users to execute arbitrary code via a malformed entry in the font alias (font.alias) file, a different vulnerability than CVE-2004-0083 and CVE-2004-0106.
How severe is CVE-2004-0084?
CVE-2004-0084 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-0084 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0084?
CVE-2004-0084 primarily affects Xfree86 Project X11r6. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0084?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2004-0084 published?
CVE-2004-0084 was published on 2004-03-03 and last updated on 2026-06-16.

References

Affected products (9)

More vulnerabilities in Xfree86 Project X11r6

All CVEs affecting Xfree86 Project X11r6 →