Is CVE-2014-7840 being actively exploited?

CVE-2014-7840 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-7840?

CVE-2014-7840 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2014-7840

HIGH · CVSS 7.5EPSS 4.1%EU EUVD

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.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-20
EPSS score: 4.1% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-7694)
Published: December 12, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-7694 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

qemu / qemu
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux server
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux workstation
redhat / virtualization

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 7.6 - Red Hat, Inc. - Common Criteria CCEVS-VR-VID-11039-2020 - archived

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08
http://rhn.redhat.com/errata/RHSA-2015-0349.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2015-0624.html(Third Party Advisory)
http://thread.gmane.org/gmane.comp.emulators.qemu/306117(Broken Link)
https://bugzilla.redhat.com/show_bug.cgi?id=1163075(Issue Tracking, Third Party Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/99194(Third Party Advisory, VDB Entry)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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