CVE-2020-27673

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

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 35.4% of scored records. A rank, not a probability.

NVD base score

5.5 (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:U/C:N/I:N/A:H

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2020-10-22 20:33Z6 YR AGO

Last updated

2024-08-04 16:18Z2 YR AGO

Reserved

2020-10-22

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

eee896d8fdb877f892eb359286addc2115aaefdf21875c58f4b96d3417fbcca0

• xenbits.xen.orghttps://xenbits.xen.org/xsa/advisory-332.htmlx_refsource_MISC
• github.comhttps://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070x_refsource_MISC
• git.kernel.orghttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070x_refsource_MISC
• lists.opensuse.orgopenSUSE-SU-2020:1783http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1844http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlvendor-advisoryx_refsource_SUSE
• security.gentoo.orgGLSA-202011-06https://security.gentoo.org/glsa/202011-06vendor-advisoryx_refsource_GENTOO
• lists.debian.org[debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlmailing-listx_refsource_MLIST
• lists.debian.org[debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlmailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20210119 Xen Security Advisory 332 v4 (CVE-2020-27673) - Rogue guests can cause DoS of Dom0 via high frequency eventshttp://www.openwall.com/lists/oss-security/2021/01/19/6mailing-listx_refsource_MLIST