HOMEVULNERABILITIESCVE-2016-4441
MEDIUM

CVE-2016-4441

CWE-119Published: May 20, 2016· Updated: Jun 17, 2026

6.0
CVSS v3.1

Official Description

The get_cmd function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check DMA length, which allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via unspecified vectors, involving an SCSI command.

NVD Source

Technical Analysis

CVE-2016-4441 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high 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 6.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
qemu1 product(s)
qemu
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (16)

http://www.openwall.com/lists/oss-security/2016/05/19/4Mailing List · Patch · Third Party Advisory
http://www.securityfocus.com/bid/90762Third Party Advisory · VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1337505Issue Tracking · Third Party Advisory · VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03274.htmlMailing List · Patch · Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/19/4Mailing List · Patch · Third Party Advisory
http://www.securityfocus.com/bid/90762Third Party Advisory · VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1337505Issue Tracking · Third Party Advisory · VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03274.htmlMailing List · Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2016-4441
CVSS Score6.0 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected3 vendor(s)
PublishedMay 20, 2016

Related CVEs (CWE-119)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2016-4441 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.