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CVE-2019-14835

25
FAUCET Score

CVE-2019-14835 is a buffer overflow vulnerability in the Linux kernel's vhost functionality, affecting versions 2.6.34 through 5.2.x, including distributions like Red Hat, Debian, and Ubuntu. This flaw allows a privileged guest user to escalate privileges on the host system during virtual machine migration by manipulating buffer descriptors. Rated with a CVSS score of 7.8 (High), it presents a significant risk of complete compromise of confidentiality, integrity, and availability, requiring low privileges and local access. There is currently no evidence of active exploitation, public exploit code (Metasploit, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.34, < 3.16.74CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.4, < 4.4.193CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.9, < 4.9.193CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.14, < 4.14.144CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.19, < 4.19.73CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.2HIGH

CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.6
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 85th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (25)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-754.23.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.5 Advanced Update SupportFixed in: kernel-0:2.6.32-431.96.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Advanced Update SupportFixed in: kernel-0:2.6.32-504.81.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1062.1.2.rt56.1025.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1062.1.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kpatch-patch
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-115.13.1.el7a
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.2 Advanced Update SupportFixed in: kernel-0:3.10.0-327.82.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.2 Telco Extended Update SupportFixed in: kernel-0:3.10.0-327.82.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.2 Update Services for SAP SolutionsFixed in: kernel-0:3.10.0-327.82.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.3 Advanced Update SupportFixed in: kernel-0:3.10.0-514.69.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.3 Telco Extended Update SupportFixed in: kernel-0:3.10.0-514.69.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.3 Update Services for SAP SolutionsFixed in: kernel-0:3.10.0-514.69.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Advanced Update SupportFixed in: kernel-0:3.10.0-693.59.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Telco Extended Update SupportFixed in: kernel-0:3.10.0-693.59.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsFixed in: kernel-0:3.10.0-693.59.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.5 Extended Update SupportFixed in: kernel-0:3.10.0-862.41.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: kernel-0:3.10.0-957.35.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: kpatch-patch
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-80.11.2.rt9.157.el8_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-80.11.2.el8_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUSFixed in: kernel-0:3.10.0-957.35.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUSFixed in: redhat-virtualization-host-0:4.2-20190919.0.el7_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Fixed in: redhat-virtualization-host-0:4.3.5-20190920.0.el7_7
View patch

Vendor Advisories (1)

redhatCVE-2019-14835Important

kernel: vhost-net: guest to host kernel escape during migration

Sep 17, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-09/msg00064.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-09/msg00066.html
Mailing ListThird Party Advisory
packetstormsecurity.com / files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html
Third Party AdvisoryVDB Entry
packetstormsecurity.com / files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
Third Party AdvisoryVDB Entry
packetstormsecurity.com / files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
Third Party AdvisoryVDB Entry
access.redhat.com / errata/RHBA-2019:2824
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2827
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2828
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2829
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2830
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2854
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2862
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2863
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2864
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2865
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2866
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2867
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2869
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2889
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2899
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2900
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2901
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2924
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/09/msg00025.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2019/10/msg00000.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KQFY6JYFIQ2VFQ7QCSXPWTUL5ZDNCJL5
Mailing List
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P
Mailing List
seclists.org / bugtraq/2019/Nov/11
Issue TrackingMailing ListThird Party Advisory
seclists.org / bugtraq/2019/Sep/41
Issue TrackingMailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20191031-0005
Third Party Advisory
usn.ubuntu.com / 4135-1
Third Party Advisory
usn.ubuntu.com / 4135-2
Third Party Advisory
debian.org / security/2019/dsa-4531
Third Party Advisory
openwall.com / lists/oss-security/2019/09/17/1
ExploitMailing ListPatchThird Party Advisory
huawei.com / en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en
Third Party Advisory
openwall.com / lists/oss-security/2019/09/24/1
Mailing List
openwall.com / lists/oss-security/2019/10/03/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2019/10/09/3
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2019/10/09/7
Mailing ListThird Party Advisory