CVE-2019-14821

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.76% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.8% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-09-19 17:37Z7 YR AGO

Last updated

2024-08-05 00:26Z2 YR AGO

Reserved

2019-08-10

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

5215c863a82d19057f04c845b8977270479e968744f70b048db6d607dccc054a

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14821x_refsource_CONFIRM
• www.openwall.com[oss-security] 20190920 CVE-2019-14821 Kernel: KVM: OOB memory access via mmio ring bufferhttp://www.openwall.com/lists/oss-security/2019/09/20/1mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2019-15e141c6a7https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TRZQQQANZWQMPILZV7OTS3RGGRLLE2Q7/vendor-advisoryx_refsource_FEDORA
• lists.debian.org[debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2019/09/msg00025.htmlmailing-listx_refsource_MLIST
• seclists.org20190925 [SECURITY] [DSA 4531-1] linux security updatehttps://seclists.org/bugtraq/2019/Sep/41mailing-listx_refsource_BUGTRAQ
• www.debian.orgDSA-4531https://www.debian.org/security/2019/dsa-4531vendor-advisoryx_refsource_DEBIAN
• lists.debian.org[debian-lts-announce] 20191001 [SECURITY] [DLA 1940-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2019/10/msg00000.htmlmailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2019-a570a92d5ahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/vendor-advisoryx_refsource_FEDORA
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20191004-0001/x_refsource_CONFIRM
• lists.opensuse.orgopenSUSE-SU-2019:2307http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2019:2308http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.htmlvendor-advisoryx_refsource_SUSE
• usn.ubuntu.comUSN-4157-1https://usn.ubuntu.com/4157-1/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4162-1https://usn.ubuntu.com/4162-1/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4157-2https://usn.ubuntu.com/4157-2/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4163-1https://usn.ubuntu.com/4163-1/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4163-2https://usn.ubuntu.com/4163-2/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4162-2https://usn.ubuntu.com/4162-2/vendor-advisoryx_refsource_UBUNTU
• packetstormsecurity.comhttp://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.htmlx_refsource_MISC
• access.redhat.comRHSA-2019:3309https://access.redhat.com/errata/RHSA-2019:3309vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2019:3517https://access.redhat.com/errata/RHSA-2019:3517vendor-advisoryx_refsource_REDHAT
• seclists.org20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01)https://seclists.org/bugtraq/2019/Nov/11mailing-listx_refsource_BUGTRAQ
• packetstormsecurity.comhttp://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlx_refsource_MISC
• access.redhat.comRHSA-2019:3978https://access.redhat.com/errata/RHSA-2019:3978vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2019:3979https://access.redhat.com/errata/RHSA-2019:3979vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2019:4154https://access.redhat.com/errata/RHSA-2019:4154vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2019:4256https://access.redhat.com/errata/RHSA-2019:4256vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2020:0027https://access.redhat.com/errata/RHSA-2020:0027vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2020:0204https://access.redhat.com/errata/RHSA-2020:0204vendor-advisoryx_refsource_REDHAT
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2020.htmlx_refsource_MISC