CVE-2004-0947

CVE-2004-0947 is a critical-severity vulnerability in Arj Software Inc. Unarj with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Buffer overflow in unarj before 2.63a-r2 allows remote attackers to execute arbitrary code via an arj archive that contains long filenames.

Frequently asked questions

What is CVE-2004-0947?
Buffer overflow in unarj before 2.63a-r2 allows remote attackers to execute arbitrary code via an arj archive that contains long filenames.
How severe is CVE-2004-0947?
CVE-2004-0947 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-0947 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0947?
CVE-2004-0947 primarily affects Arj Software Inc. Unarj. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0947?
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-2004-0947 published?
CVE-2004-0947 was published on 2005-02-09 and last updated on 2026-06-16.

References

Affected products (8)