CVE-2018-1087

mediumpriority · track · 31EPSS 0.007 · 55 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.74% (55th) EPSS

CVSS 4.6 · medium

Is it mine?

26 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.

cvss

Technical severity, 0–10. One row per scoring source.

8.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.07.8highCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.08highCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.08highCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 2.1 · impact 5.9

v3.07.1highCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-250US

affected products (26)

Products and version ranges known to be affected.

kernel KVM≤ kernel 4.16-rc7enisa_euvdEU
kernel KVM≤ kernel 4.16enisa_euvdEU
kernel KVM≤ kernel 4.17-rc3enisa_euvdEU
kernel KVM≤ kernel 4.17-rc2enisa_euvdEU
kernel KVM≤ kernel 4.17-rc1enisa_euvdEU
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 17.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
linux linux kernel= 4.16nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel= 4.17nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
redhat enterprise linux= 7.0nvdUScpe:2.3:o:redhat:enterprise_linux:*:*:*:*:*:*:*:*
redhat enterprise linux desktop= 7.0nvdUScpe:2.3:o:redhat:enterprise_linux_desktop:*:*:*:*:*:*:*:*
redhat enterprise linux server= 7.0nvdUScpe:2.3:o:redhat:enterprise_linux_server:*:*:*:*:*:*:*:*
redhat enterprise linux server aus= 7.2nvdUScpe:2.3:o:redhat:enterprise_linux_server_aus:*:*:*:*:*:*:*:*
redhat enterprise linux server aus= 7.3nvdUScpe:2.3:o:redhat:enterprise_linux_server_aus:*:*:*:*:*:*:*:*
redhat enterprise linux server aus= 7.4nvdUScpe:2.3:o:redhat:enterprise_linux_server_aus:*:*:*:*:*:*:*:*
redhat enterprise linux server eus= 7.3nvdUScpe:2.3:o:redhat:enterprise_linux_server_eus:*:*:*:*:*:*:*:*
redhat enterprise linux server eus= 7.4nvdUScpe:2.3:o:redhat:enterprise_linux_server_eus:*:*:*:*:*:*:*:*

showing 20 of 26

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-05-15modified 2026-06-17

references (49)

External citations — patches, advisories, analysis.

scry

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