CVE-2002-0759

bzip2 before 1.0.2 in FreeBSD 4.5 and earlier, OpenLinux 3.1 and 3.1.1, and possibly other operating systems, does not use the O_EXCL flag to create files during decompression and does not warn the user if an existing file would be overwritten, which could allow attackers to overwrite files via a bzip2 archive.

Published: 2002-08-12 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2002-0759 is rated Moderate Risk (46.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.83%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2002-0759

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 2025-08-01 0.47% 0.83% +0.36%
2 2025-03-30 0.68% 0.47% -0.21%
3 2025-03-29 0.68%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2002-0759

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2002-0759

Affected software / configurations for CVE-2002-0759

Vendor Product Version Raw CPE
bzip bzip2 0.9.0 cpe:2.3:a:bzip:bzip2:0.9.0:*:*:*:*:*:*:*
bzip bzip2 0.9.0a cpe:2.3:a:bzip:bzip2:0.9.0a:*:*:*:*:*:*:*
bzip bzip2 0.9.0b cpe:2.3:a:bzip:bzip2:0.9.0b:*:*:*:*:*:*:*
bzip bzip2 0.9.0c cpe:2.3:a:bzip:bzip2:0.9.0c:*:*:*:*:*:*:*
bzip bzip2 0.9.5a cpe:2.3:a:bzip:bzip2:0.9.5a:*:*:*:*:*:*:*
bzip bzip2 0.9.5b cpe:2.3:a:bzip:bzip2:0.9.5b:*:*:*:*:*:*:*
bzip bzip2 0.9.5c cpe:2.3:a:bzip:bzip2:0.9.5c:*:*:*:*:*:*:*
bzip bzip2 0.9.5d cpe:2.3:a:bzip:bzip2:0.9.5d:*:*:*:*:*:*:*
bzip bzip2 1.0 cpe:2.3:a:bzip:bzip2:1.0:*:*:*:*:*:*:*
bzip bzip2 1.0.1 cpe:2.3:a:bzip:bzip2:1.0.1:*:*:*:*:*:*:*

References for CVE-2002-0759

cvelogic Threat Intelligence