How severe is CVE-2014-8517?

CVE-2014-8517 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2014-8517 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 69% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-8517?

CVE-2014-8517 primarily affects Apple Mac Os X. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-8517?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-8517 published?

CVE-2014-8517 was published on 2014-11-17 and last updated on 2026-06-17.

CVE-2014-8517

CVE-2014-8517 is a high-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 69% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-77.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 69% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Apple Mac Os X
Published: 2014-11-17
Last modified: 2026-06-17

Description

The fetch_url function in usr.bin/ftp/fetch.c in tnftp, as used in NetBSD 5.1 through 5.1.4, 5.2 through 5.2.2, 6.0 through 6.0.6, and 6.1 through 6.1.5 allows remote attackers to execute arbitrary commands via a | (pipe) character at the end of an HTTP redirect.

Frequently asked questions

What is CVE-2014-8517?: The fetch_url function in usr.bin/ftp/fetch.c in tnftp, as used in NetBSD 5.1 through 5.1.4, 5.2 through 5.2.2, 6.0 through 6.0.6, and 6.1 through 6.1.5 allows remote attackers to execute arbitrary commands via a | (pipe) character at the end of an HTTP redirect.
How severe is CVE-2014-8517?: CVE-2014-8517 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2014-8517 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 69% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-8517?: CVE-2014-8517 primarily affects Apple Mac Os X. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-8517?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-8517 published?: CVE-2014-8517 was published on 2014-11-17 and last updated on 2026-06-17.

References

Affected products (25)

cpe:2.3:o:apple:mac_os_x:10.8.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.9.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.10.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.10.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.1.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.1.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.1.3:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.1.4:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.2.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:5.2.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.3:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.4:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.5:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.6:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.3:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.4:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.5:*:*:*:*:*:*:*

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