CVE-2026-3842 Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write
| Reporter | Title | Published | Views | Family All 41 |
|---|---|---|---|---|
 | CVE-2026-3842 | 16 Jul 202600:20 | – | attackerkb |
 | Astra Linux – Vulnerability in Qemu | 10 Aug 202607:11 | – | astralinux |
 | The vulnerability of the QEMU hardware emulation software, related to the execution of operations beyond the buffer boundaries in memory, allows a malicious actor to trigger a system failure. | 24 Aug 202600:00 | – | bdu_fstec |
 | CVE-2026-3842 affecting package qemu for versions less than 9.1.0-11 | 22 Jul 202622:06 | – | cbl_mariner |
 | CVE-2026-3842 | 16 Jul 202604:24 | – | circl |
 | CVE-2026-3842 | 16 Jul 202600:20 | – | cve |
 | CVE-2026-3842 | 16 Jul 202600:20 | – | debiancve |
 | qemu-kvm security update | 24 Apr 202600:00 | – | oraclelinux |
 | EUVD-2026-44840 | 16 Jul 202600:20 | – | euvd |
 | Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write | 19 Jul 202608:02 | – | mscve |
10
[
{
"versions": [
{
"status": "affected",
"version": "7.1.0",
"lessThan": "11.0.0",
"versionType": "semver"
}
],
"packageName": "qemu",
"collectionURL": "https://gitlab.com/qemu-project/qemu",
"defaultStatus": "unaffected"
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm",
"defaultStatus": "unaffected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm",
"defaultStatus": "unaffected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm",
"defaultStatus": "unaffected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm-ma",
"defaultStatus": "unaffected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "virt:rhel/qemu-kvm",
"defaultStatus": "unaffected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm",
"defaultStatus": "unaffected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "rhcos",
"defaultStatus": "unaffected",
"cpes": [
"cpe:/a:redhat:openshift:4"
]
}
]| Source | Link |
|---|---|
| access | www.access.redhat.com/security/cve/CVE-2026-3842 |
| bugzilla | www.bugzilla.redhat.com/show_bug.cgi |
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
16 Jul 2026 00:20Current
CVSS 3.17.8
EPSS0.00167