CVE-2020-25599

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 20.9% of scored records. A rank, not a probability.

NVD base score

7.0 (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:U/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

2020-09-23 21:10Z6 YR AGO

Last updated

2024-08-04 15:33Z2 YR AGO

Reserved

2020-09-16

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
• CWE-368Context Switching Race ConditionBase

Data version

5.1

Document digest

47002061cf5b4826ab79277c3dc250b44d3980409429258b3af7a8d734d9a4af

• xenbits.xen.orghttps://xenbits.xen.org/xsa/advisory-343.htmlx_refsource_MISC
• lists.fedoraproject.orgFEDORA-2020-306b84fd07https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-f668e579behttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/vendor-advisoryx_refsource_FEDORA
• www.debian.orgDSA-4769https://www.debian.org/security/2020/dsa-4769vendor-advisoryx_refsource_DEBIAN
• lists.opensuse.orgopenSUSE-SU-2020:1608http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.htmlvendor-advisoryx_refsource_SUSE
• lists.fedoraproject.orgFEDORA-2020-d46fe34349https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202011-06https://security.gentoo.org/glsa/202011-06vendor-advisoryx_refsource_GENTOO
• www.openwall.com[oss-security] 20201216 Xen Security Advisory 343 v5 (CVE-2020-25599) - races with evtchn_reset()http://www.openwall.com/lists/oss-security/2020/12/16/5mailing-listx_refsource_MLIST