CVE-2011-4089

Exp

The bzexe command in bzip2 1.0.5 and earlier generates compressed executables that do not properly handle temporary files during extraction, which allows local users to execute arbitrary code by precreating a temporary directory.

Published: 2014-04-16 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4089 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%). 2 public exploit reference(s) are indexed (Exploit-DB). 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.

Public exploit references (Exploit-DB) for CVE-2011-4089

EDB-ID Source Kind Published Link
18147 exploit_db edb 2011-11-23 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-4089

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 2025-03-30 0.40% 0.22% -0.18%
2 2025-03-29 0.22% 0.40% +0.18%
3 2025-03-17 — 0.22% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4089

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2011-4089

OS Trackers for CVE-2011-4089

vendor priority summary link
debian low CVE-2011-4089 low priority: Debian including 1 source packages (bzip2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-4089
redhat — — https://access.redhat.com/security/cve/CVE-2011-4089
ubuntu medium CVE-2011-4089 medium priority: Ubuntu including 1 source packages (bzip2), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 6. https://ubuntu.com/security/CVE-2011-4089

Affected software / configurations for CVE-2011-4089

Vendor Product Version Raw CPE
bzip bzip2 <= 1.0.4 cpe:2.3:a:bzip:bzip2:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
bzip bzip2 1.0.2 cpe:2.3:a:bzip:bzip2:1.0.2:*:*:*:*:*:*:*
bzip bzip2 1.0.3 cpe:2.3:a:bzip:bzip2:1.0.3:*:*:*:*:*:*:*

References for CVE-2011-4089

cvelogic Threat Intelligence