Is CVE-2016-6561 actively exploited?

CVE-2016-6561 has no public evidence of in-the-wild exploitation as of 2025-04-20.

What is the CVSS score for CVE-2016-6561?

CVE-2016-6561 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Patch guidance is available from illumos security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-6561.

illumos smbsrv NULL pointer dereference allows system crash.

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-476 · NULL Pointer Dereference CWE-476 · NULL Pointer Dereference

Primary Vendor: ILLUMOS
Published: 3/31/2017
Last Modified: 4/20/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

illumos : illumos

Cite this page

CVE-2016-6561. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2016-6561