CVE-2004-0771

CVE-2004-0771 is a critical-severity vulnerability in Tsugio Okamoto Lha with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflow in the extract_one function from lhext.c in LHA may allow attackers to execute arbitrary code via a long w (working directory) command line option, a different issue than CVE-2004-0769. NOTE: this issue may be REJECTED if there are not any cases in which LHA is setuid or is otherwise used across security boundaries.

Frequently asked questions

What is CVE-2004-0771?
Buffer overflow in the extract_one function from lhext.c in LHA may allow attackers to execute arbitrary code via a long w (working directory) command line option, a different issue than CVE-2004-0769. NOTE: this issue may be REJECTED if there are not any cases in which LHA is setuid or is otherwise used across security boundaries.
How severe is CVE-2004-0771?
CVE-2004-0771 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-0771 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0771?
CVE-2004-0771 primarily affects Tsugio Okamoto Lha. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0771?
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-2004-0771 published?
CVE-2004-0771 was published on 2004-11-23 and last updated on 2026-06-16.

References

Affected products (3)

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