CVE-2020-29040

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

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 31.4% of scored records. A rank, not a probability.

NVD base score

8.8 (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: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

2020-11-24 16:07Z5 YR AGO

Last updated

2024-08-04 16:48Z2 YR AGO

Reserved

2020-11-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-193Off-by-one ErrorBase
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

7b5105c60daac9fd519aad1538deb5dd3c1ec6321c7f9379b6ea40e7414f82e0

• xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-355.htmlx_refsource_CONFIRM
• xenbits.xen.orghttps://xenbits.xen.org/xsa/advisory-355.htmlx_refsource_MISC
• www.openwall.com[oss-security] 20210119 Xen Security Advisory 355 v3 (CVE-2020-29040) - stack corruption from XSA-346 changehttp://www.openwall.com/lists/oss-security/2021/01/19/4mailing-listx_refsource_MLIST