How severe is CVE-2011-4089?

CVE-2011-4089 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2011-4089 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4089?

CVE-2011-4089 primarily affects Bzip Bzip2. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4089?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4089 published?

CVE-2011-4089 was published on 2014-04-16 and last updated on 2026-06-16.

CVE-2011-4089

CVE-2011-4089 is a medium-severity vulnerability in Bzip Bzip2 with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Bzip Bzip2
Published: 2014-04-16
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2011-4089?: 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.
How severe is CVE-2011-4089?: CVE-2011-4089 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2011-4089 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4089?: CVE-2011-4089 primarily affects Bzip Bzip2. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4089?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4089 published?: CVE-2011-4089 was published on 2014-04-16 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:bzip:bzip2:*:*:*:*:*:*:*:*
cpe:2.3:a:bzip:bzip2:1.0:*:*:*:*:*:*:*
cpe:2.3:a:bzip:bzip2:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:bzip:bzip2:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:bzip:bzip2:1.0.3:*:*:*:*:*:*:*

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