HOMEVULNERABILITIESCVE-2016-4964
MEDIUM

CVE-2016-4964

NVD-CWE-noinfoPublished: December 10, 2016· Updated: Jun 17, 2026

6.0
CVSS v3.1

Official Description

The mptsas_fetch_requests function in hw/scsi/mptsas.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop, and CPU consumption or QEMU process crash) via vectors involving s->state.

NVD Source

Technical Analysis

CVE-2016-4964 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.

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

qemu1 product(s)
qemu
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

PATCHhttps://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04027.html
PATCHhttps://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04027.html
ADVISORYhttp://www.openwall.com/lists/oss-security/2016/05/24/4
ADVISORYhttp://www.openwall.com/lists/oss-security/2016/05/24/7
ADVISORYhttps://security.gentoo.org/glsa/201609-01
ADVISORYhttp://www.openwall.com/lists/oss-security/2016/05/24/4
ADVISORYhttp://www.openwall.com/lists/oss-security/2016/05/24/7
ADVISORYhttps://security.gentoo.org/glsa/201609-01

All References (10)

→
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=06630554ccbdd25780aa03c3548aaff1eb56dffd
→
http://www.openwall.com/lists/oss-security/2016/05/24/4Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/05/24/7Mailing List · Third Party Advisory
→
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04027.htmlPatch · Third Party Advisory
→
https://security.gentoo.org/glsa/201609-01Third Party Advisory
→
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=06630554ccbdd25780aa03c3548aaff1eb56dffd
→
http://www.openwall.com/lists/oss-security/2016/05/24/4Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/05/24/7Mailing List · Third Party Advisory
→
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04027.htmlPatch · Third Party Advisory
→
https://security.gentoo.org/glsa/201609-01Third Party Advisory

Quick Facts

CVE IDCVE-2016-4964
CVSS Score6.0 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedDec 10, 2016

Related CVEs (NVD-CWE-noinfo)

CVE-2010-3556
10.0
CVE-2010-3558
10.0
CVE-2010-3554
10.0
CVE-2012-1398
10.0
CVE-2010-3553
10.0
CVE-2010-3559
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-4964 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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