CVE-2021-30540

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

1.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 71.3% of scored records. A rank, not a probability.

NVD base score

6.5 (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:N/I:H/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

2021-06-07 19:25Z5 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-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class

Data version

5.1

Document digest

e05219c5c6c0bcff967314cd7ebbee74361f2af010804684dd91493789652de9

• chromereleases.googleblog.comhttps://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.htmlx_refsource_MISC
• crbug.comhttps://crbug.com/1184147x_refsource_MISC
• security.gentoo.orgGLSA-202107-06https://security.gentoo.org/glsa/202107-06vendor-advisoryx_refsource_GENTOO
• lists.fedoraproject.orgFEDORA-2021-f94dadff78https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-ca58c57bdfhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/vendor-advisoryx_refsource_FEDORA