Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-eka3-u8e5-3uad
Vulnerability ID VCID-eka3-u8e5-3uad
Aliases CVE-2020-27671
XSA-346
Summary undue deferral of IOMMU TLB flushes
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-672 Operation on a Resource after Expiration or Release
System Score Found at
cvssv3 7.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27671.json
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2020-27671
cvssv3.1 7.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27671.json
https://api.first.org/data/v1/epss?cve=CVE-2020-27671
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27670
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27671
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27672
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27674
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28368
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1891091 https://bugzilla.redhat.com/show_bug.cgi?id=1891091
GLSA-202011-06 https://security.gentoo.org/glsa/202011-06
XSA-346 https://xenbits.xen.org/xsa/advisory-346.html
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27671.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.21789
EPSS Score 0.00071
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:37:51.771590+00:00 Xen Importer Import https://xenbits.xen.org/xsa/advisory-346.html 38.0.0