HOMEVULNERABILITIESCVE-2016-9040
MEDIUM

CVE-2016-9040

CWE-400Published: September 7, 2018· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

An exploitable denial of service exists in the the Joyent SmartOS OS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFSADDENTRIES when used with a 32 bit model. An attacker can cause a buffer to be allocated and never freed. When repeatedly exploit this will result in memory exhaustion, resulting in a full system denial of service.

NVD Source

Technical Analysis

CVE-2016-9040 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

joyent1 product(s)
smartos
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0258
ADVISORYhttps://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0258

All References (2)

→
https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0258Exploit · Technical Description · Third Party Advisory
→
https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0258Exploit · Technical Description · Third Party Advisory

Quick Facts

CVE IDCVE-2016-9040
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-400
CISA KEVNo
Affected1 vendor(s)
PublishedSep 7, 2018

Related CVEs (CWE-400)

CVE-2025-43193
9.8
CVE-2015-4412
9.8
CVE-2024-45166
9.8
CVE-2026-30141
9.8
CVE-2024-39462
9.8
CVE-2018-11936
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-9040 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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