How severe is CVE-2016-9039?

CVE-2016-9039 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-9039 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9039?

CVE-2016-9039 affects Joyent Smartos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-9039?

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

When was CVE-2016-9039 published?

CVE-2016-9039 was published on 2017-01-31 and last updated on 2026-06-17.

CVE-2016-9039

CVE-2016-9039 is a medium-severity vulnerability in Joyent Smartos with a CVSS 3.x base score of 6.2. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
CVSS v2: 4.9
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Joyent Smartos
Published: 2017-01-31
Last modified: 2026-06-17

Description

An exploitable denial of service exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES. An attacker can cause a buffer to be allocated and never freed. When repeatedly exploited this will result in memory exhaustion, resulting in a full system denial of service.

Frequently asked questions

What is CVE-2016-9039?: An exploitable denial of service exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES. An attacker can cause a buffer to be allocated and never freed. When repeatedly exploited this will result in memory exhaustion, resulting in a full system denial of service.
How severe is CVE-2016-9039?: CVE-2016-9039 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-9039 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9039?: CVE-2016-9039 affects Joyent Smartos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-9039?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-9039 published?: CVE-2016-9039 was published on 2017-01-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:joyent:smartos:20161110t013148z:*:*:*:*:*:*:*

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