CVE-2014-7840

NONECVSS 0.0

0.0

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.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 85.5%
KEV: Not listed

Published

December 12, 2014

Last Modified

May 6, 2026

References (12)

secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08
secalert@redhathttp://rhn.redhat.com/errata/RHSA-2015-0349.html
secalert@redhathttp://rhn.redhat.com/errata/RHSA-2015-0624.html
secalert@redhathttp://thread.gmane.org/gmane.comp.emulators.qemu/306117
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1163075
secalert@redhathttps://exchange.xforce.ibmcloud.com/vulnerabilities/99194
af854a3a-2127-422b-91ae-364da2661108http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2015-0349.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2015-0624.html
af854a3a-2127-422b-91ae-364da2661108http://thread.gmane.org/gmane.comp.emulators.qemu/306117
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1163075
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/99194

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	qemu-system-x86 (2.1+dfsg-4ubuntu6.3) @ utopic	2026-05-28	ubuntu
redhat	qemu-kvm-10:1.5.3-86.el7	2015-03-05	redhat
redhat	qemu-kvm-rhev-10:2.1.2-23.el7	2015-03-05	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-07 15:22 UTCepss_batch
2026-06-06 13:45 UTCepss_batch
2026-06-06 13:45 UTCepss_batch
2026-06-05 22:44 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 14:34 UTCEG score recompute
2026-05-28 14:34 UTCVendor advisory
2026-05-28 14:34 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch

Frequently asked(4)

What is CVE-2014-7840?

CVE-2014-7840 is a none vulnerability published on December 12, 2014. The hostfromstreamoffset function in archinit.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.

When was CVE-2014-7840 disclosed?

CVE-2014-7840 was first published in the National Vulnerability Database on December 12, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2014-7840 actively exploited?

CVE-2014-7840 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2014-7840?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-7840, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2014-7840

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CVE-2014-7840

Published

Last Modified

References (12)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2014-7840?

Same vendor

Same CWE

CVE-2014-7840

📅 Published

🔄 Last Modified

🔗 References (12)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2014-7840?

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References (12)

Frequently asked(4)

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