CVE-2020-11739

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 21.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/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

Moderate. 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

2020-04-14 12:17Z6 YR AGO

Last updated

2024-08-04 11:41Z2 YR AGO

Reserved

2020-04-14

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.1

Document digest

8ba573c539ba9346de5c610e0c069da0b229a63c3af0f85748f2ba2ff1cbd316

• xenbits.xen.orghttps://xenbits.xen.org/xsa/advisory-314.htmlx_refsource_MISC
• xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-314.htmlx_refsource_CONFIRM
• www.openwall.com[oss-security] 20200414 Xen Security Advisory 314 v3 (CVE-2020-11739) - Missing memory barriers in read-write unlock pathshttp://www.openwall.com/lists/oss-security/2020/04/14/2mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2020-440457afe4https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-295ed0b1e0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/vendor-advisoryx_refsource_FEDORA
• lists.opensuse.orgopenSUSE-SU-2020:0599http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.htmlvendor-advisoryx_refsource_SUSE
• lists.fedoraproject.orgFEDORA-2020-cbc3149753https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202005-08https://security.gentoo.org/glsa/202005-08vendor-advisoryx_refsource_GENTOO
• www.debian.orgDSA-4723https://www.debian.org/security/2020/dsa-4723vendor-advisoryx_refsource_DEBIAN