How severe is CVE-2011-0203?

CVE-2011-0203 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-0203 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0203?

CVE-2011-0203 primarily affects Apple Mac Os X Server. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-0203?

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

When was CVE-2011-0203 published?

CVE-2011-0203 was published on 2011-06-24 and last updated on 2026-06-16.

CVE-2011-0203

CVE-2011-0203 is a medium-severity vulnerability in Apple Mac Os X Server with a CVSS 2.0 base score of 5.0. 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-22.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Apple Mac Os X Server
Published: 2011-06-24
Last modified: 2026-06-16

Description

Absolute path traversal vulnerability in xftpd in the FTP Server component in Apple Mac OS X before 10.6.8 allows remote attackers to list arbitrary directories by using the root directory as the starting point of a recursive listing.

Frequently asked questions

What is CVE-2011-0203?: Absolute path traversal vulnerability in xftpd in the FTP Server component in Apple Mac OS X before 10.6.8 allows remote attackers to list arbitrary directories by using the root directory as the starting point of a recursive listing.
How severe is CVE-2011-0203?: CVE-2011-0203 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-0203 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0203?: CVE-2011-0203 primarily affects Apple Mac Os X Server. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-0203?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-0203 published?: CVE-2011-0203 was published on 2011-06-24 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:o:apple:mac_os_x_server:10.6.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.4:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.7:*:*:*:*:*:*:*

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