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.
Conclusion & alert: CVE-2004-0771 is rated High Exploit Risk (89.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 18.83%, 97th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 24120 | exploit_db | edb | 2004-05-19 | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-18 | 18.49% | 18.83% | +0.34% |
| 2 | 2026-06-15 | 37.95% | 18.49% | -19.46% |
| 3 | 2025-03-30 | — | 37.95% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2004-0771 |
ubuntu
|
medium | CVE-2004-0771 medium priority: Ubuntu including 1 source packages (lha), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2004-0771 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| tsugio_okamoto | lha | 1.14 | cpe:2.3:a:tsugio_okamoto:lha:1.14:*:*:*:*:*:*:* |
| tsugio_okamoto | lha | 1.15 | cpe:2.3:a:tsugio_okamoto:lha:1.15:*:*:*:*:*:*:* |
| tsugio_okamoto | lha | 1.17 | cpe:2.3:a:tsugio_okamoto:lha:1.17:*:*:*:*:*:*:* |