CVE-2021-3840

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

2.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 80.6% 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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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

2021-11-12 22:05Z4 YR AGO

Last updated

2024-08-03 17:09Z2 YR AGO

Reserved

2021-09-29

Assigning CNA

lenovo

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-427Uncontrolled Search Path ElementBase

Data version

5.1

Document digest

04f9b72d04a3f0654df073944afc5739faa4fb081f0a1ab940362569a9488925

• github.comhttps://github.com/lenovo/Antilles/security/advisories/GHSA-hgc3-hp6x-wpgxx_refsource_MISC