Skip to main content
View

Vulnerability Assessment

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.08%.
Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

The patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Sign in to check
Technical ContextAI · show details

The patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR). Affected products include: Qemu, Canonical Ubuntu Linux, Debian Debian Linux, Redhat Openstack, Redhat Enterprise Linux Desktop.

Know when Qemu gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources
Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

The patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR).

Threat Intelligence Overview

EPSS Score
0.1%
Top 76% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
+ 5 more

More in Qemu

View all
CVE-2015-3456 HIGH POC
7.7 May 13

The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a

CVE-2015-8556 CRITICAL POC
10.0 Mar 24

Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1. Rated critical severity (CVSS 10.0)
CVE-2019-12928 CRITICAL POC
9.8 Jun 24

The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command injection, which allows the remote
CVE-2019-12929 CRITICAL POC
9.8 Jun 24

The QMP guest_exec command in QEMU 4.0.0 and earlier is prone to OS command injection, which allows the attacker to achi
CVE-2015-7512 CRITICAL
9.0 Jan 08

Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remot
CVE-2016-7161 CRITICAL
9.8 Oct 05

Heap-based buffer overflow in the .receive callback of xlnx.xps-ethernetlite in QEMU (aka Quick Emulator) allows attacke
CVE-2024-24474 HIGH POC
8.8 Feb 20

QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI command when an expected non-DMA tra
CVE-2022-35414 HIGH POC
8.8 Jul 11

softmmu/physmem.c in QEMU through 7.0.0 can perform an uninitialized read on the translate_fail path, leading to an io_r
CVE-2016-4002 CRITICAL
9.8 Apr 26

Buffer overflow in the mipsnet_receive function in hw/net/mipsnet.c in QEMU, when the guest NIC is configured to accept

CVE-2024-3447 MEDIUM POC
6.0 Nov 14

A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. Rated medium severity (CVSS 6.0), this vul
CVE-2017-15268 HIGH POC
7.5 Oct 12

Qemu through 2.10.0 allows remote attackers to cause a memory leak by triggering slow data-channel read operations, rela
CVE-2022-2962 HIGH POC
7.8 Sep 13

A DMA reentrancy issue was found in the Tulip device emulation in QEMU. Rated high severity (CVSS 7.8), this vulnerabili

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
PATCH https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01106.html PATCH https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01118.html REF http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=691a02e2ce0c413236a78dee6f2651c937b09fb0 REF http://www.securityfocus.com/bid/86067 REF http://www.ubuntu.com/usn/USN-2974-1 REF https://access.redhat.com/errata/RHSA-2017:1856 REF https://access.redhat.com/errata/RHSA-2017:2392 REF https://access.redhat.com/errata/RHSA-2017:2408 REF https://bugzilla.redhat.com/show_bug.cgi?id=1313686 REF https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html REF https://security.gentoo.org/glsa/201609-01

Search Externally

GitHub PoC Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy