HOME VULNERABILITIESCVE-2016-7907

MEDIUM

CVE-2016-7907

CWE-20Published: October 5, 2016· Updated: Jun 17, 2026

4.4

CVSS v3.1

Official Description

The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.

Technical Analysis

CVE-2016-7907 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 4.4.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.High

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

qemu1 product(s)

qemu

Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

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/2016-09/msg05556.html

PATCHhttps://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html

ADVISORYhttp://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

ADVISORYhttp://www.openwall.com/lists/oss-security/2016/10/03/1

ADVISORYhttp://www.openwall.com/lists/oss-security/2016/10/03/4

ADVISORYhttp://www.securityfocus.com/bid/93274

ADVISORYhttps://security.gentoo.org/glsa/201611-11

ADVISORYhttp://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

ADVISORYhttp://www.openwall.com/lists/oss-security/2016/10/03/1

ADVISORYhttp://www.openwall.com/lists/oss-security/2016/10/03/4

ADVISORYhttp://www.securityfocus.com/bid/93274

ADVISORYhttps://security.gentoo.org/glsa/201611-11

All References (12)

→

http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2016/10/03/1Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2016/10/03/4Mailing List · Third Party Advisory

→

http://www.securityfocus.com/bid/93274Third Party Advisory · VDB Entry

→

https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.htmlMailing List · Patch · Vendor Advisory

→

https://security.gentoo.org/glsa/201611-11Third Party Advisory

→

http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2016/10/03/1Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2016/10/03/4Mailing List · Third Party Advisory

→

http://www.securityfocus.com/bid/93274Third Party Advisory · VDB Entry

→

https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.htmlMailing List · Patch · Vendor Advisory

→

https://security.gentoo.org/glsa/201611-11Third Party Advisory

Quick Facts

CVE IDCVE-2016-7907

CVSS Score4.4 / 10

SeverityMEDIUM

WeaknessCWE-20

CISA KEVNo

Affected1 vendor(s)

PublishedOct 5, 2016

Related CVEs (CWE-20)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2016-7907 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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