CVE-2021-30561

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

4.77% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 91.6% 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

2021-08-03 18:25Z5 YR AGO

Last updated

2024-08-03 22:32Z2 YR AGO

Reserved

2021-04-13

Assigning CNA

Chrome

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.1

Document digest

b1f5821f93917698a6d9e6e81d88e239cdb991da8295d2bbc4f53705ca1e0ca6

• chromereleases.googleblog.comhttps://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.htmlx_refsource_MISC
• crbug.comhttps://crbug.com/1219630x_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/163835/Chrome-JS-WasmJs-InstallConditionalFeatures-Object-Corruption.htmlx_refsource_MISC