An exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system.

published 2016-12-14 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9857

cvss: 7.0; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

An exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES when dealing with native file systems. An attacker can craft an input that can cause a buffer overflow in the path variable leading to an out of bounds memory access and could result in potential privilege escalation. This vulnerability is distinct from CVE-2016-9033.

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

talosintelligence.com http://www.talosintelligence.com/reports/TALOS-2016-0253/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.0	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.9	AV:L/AC:M/Au:N/C:C/I:C/A:C

Affected products

Joyent SmartOS

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input

References

talosintelligence.com /reports/TALOS-2016-0253/
exploit, third-party-advisory, vdb-entry
securityfocus.com /bid/94926
vdb-entry, broken-link, third-party-advisory

Sources

CVE List CVE-2016-9035
NVD CVE-2016-9035

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary