CVE-2021-40154

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

0.73% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 51.6% 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:H/I:N/A:N

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

2021-12-01 14:50Z4 YR AGO

Last updated

2024-08-04 02:27Z2 YR AGO

Reserved

2021-08-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

CVSS:3.1/AC:L/AV:L/A:L/C:H/I:N/PR:L/S:U/UI:N

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

50be404f7ec6be0f31117e767b9b4cd78d6eb8f8710005cd1111af78c03b5a7a

• www.darkmatter.aehttps://www.darkmatter.ae/xen1thlabs/published-advisories/x_refsource_MISC
• github.comhttps://github.com/Xen1thLabs-AE/CVE-2021-40154x_refsource_MISC