CVE & CISA-KEV Catalog

CVE-2014-7840

HIGHEPSS 90th pctl

7.5

CVSS v2

Description

The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data.

CWE-20Improper Input Validation

How to fix

Remediation Available

qemuDebian

Fixed in:2.1+dfsg-8CVE-2014-7840

Fixed in:2.1+dfsg-8CVE-2014-7840

Fixed in:2.1+dfsg-8CVE-2014-7840

Fixed in:2.1+dfsg-8CVE-2014-7840

qemuUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-systemUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-system-aarch64Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-system-armUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-system-mipsUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-system-miscUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-system-ppcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-system-sparcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

qemu-system-x86Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.9USN-2439-1

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.12%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Third-Party Advisory4

Other references2

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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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 2026-05-06.