How severe is CVE-2018-3271?

CVE-2018-3271 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-3271 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3271?

CVE-2018-3271 affects Oracle Solaris. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3271?

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

When was CVE-2018-3271 published?

CVE-2018-3271 was published on 2018-10-17 and last updated on 2026-06-17.

CVE-2018-3271

CVE-2018-3271 is a medium-severity vulnerability in Oracle Solaris with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.7
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Solaris
Published: 2018-10-17
Last modified: 2026-06-17

Description

Vulnerability in the Solaris component of Oracle Sun Systems Products Suite (subcomponent: Kernel Zones). The supported version that is affected is 11.3. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Solaris executes to compromise Solaris. While the vulnerability is in Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Solaris. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H).

Frequently asked questions

What is CVE-2018-3271?: Vulnerability in the Solaris component of Oracle Sun Systems Products Suite (subcomponent: Kernel Zones). The supported version that is affected is 11.3. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Solaris executes to compromise Solaris. While the vulnerability is in Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Solaris. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H).
How severe is CVE-2018-3271?: CVE-2018-3271 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-3271 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3271?: CVE-2018-3271 affects Oracle Solaris. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3271?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-3271 published?: CVE-2018-3271 was published on 2018-10-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*

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