CVE & CISA-KEV Catalog

CVE-2015-8666

HIGH
7.9
CVSS v3
NVD

Description

Heap-based buffer overflow in QEMU, when built with the Q35-chipset-based PC system emulator.

CWE-787Out-of-bounds Write

How to fix

Remediation Available
qemuDebian
Fixed in:1:2.5+dfsg-1CVE-2015-8666
Fixed in:1:2.5+dfsg-1CVE-2015-8666
Fixed in:1:2.5+dfsg-1CVE-2015-8666
Fixed in:1:2.5+dfsg-1CVE-2015-8666
qemuUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-systemUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-system-aarch64Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-system-armUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-system-mipsUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-system-miscUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-system-ppcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-system-sparcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1
qemu-system-x86Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged

Impact

ConfidentialityNone
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.43%probability of exploitation in 30 days
35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Other references1

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-22457Critical9.0100%KEV + RansomFix
CVE-2025-0282Critical9.0100%KEV + Ransom-
CVE-2015-3113Critical9.8100%KEVFix
CVE-2021-20038Critical9.8100%KEV + Ransom-
CVE-2023-4863High8.8100%KEVFix
CVE-2020-16040Medium6.5100%-Fix
Embed a live status badge for CVE-2015-8666
CVE-2015-8666 severity badge

Markdown

[![CVE-2015-8666](https://tridentstack.com/cve/badge/CVE-2015-8666.svg)](https://tridentstack.com/cve/CVE-2015-8666)

HTML

<a href="https://tridentstack.com/cve/CVE-2015-8666"><img src="https://tridentstack.com/cve/badge/CVE-2015-8666.svg" alt="CVE-2015-8666"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.