CVE-2021-21413

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

0.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 51.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/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

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

2021-03-30 22:25Z5 YR AGO

Last updated

2024-08-03 18:09Z2 YR AGO

Reserved

2020-12-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.0)

CNA CVSS vector

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

Weaknesses

• CWE-913Improper Control of Dynamically-Managed Code ResourcesClass

Data version

5.1

Document digest

1bdacf9cc2b29f92813d2ba75661f243c4d14d9e1854343531adee8fc838afdf

• github.comhttps://github.com/laverdet/isolated-vm/security/advisories/GHSA-mmhj-4w6j-76h7x_refsource_CONFIRM
• github.comhttps://github.com/laverdet/isolated-vm/commit/2646e6c1558bac66285daeab54c7d490ed332b15x_refsource_MISC
• github.comhttps://github.com/laverdet/isolated-vm/commit/27151bfecc260e96714443613880e3b2e6596704x_refsource_MISC
• github.comhttps://github.com/laverdet/isolated-vm/blob/main/CHANGELOG.md#v400x_refsource_MISC