CVE-2021-45481

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

1.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 70.9% 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:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2021-12-25 00:04Z4 YR AGO

Last updated

2024-08-04 04:39Z2 YR AGO

Reserved

2021-12-25

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.1

Document digest

17557c73e54687a5335063823e3f6e2d31e753e74108b8f0e7490fabdfad95b6

• github.comhttps://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.32.3x_refsource_MISC
• www.openwall.com[oss-security] 20220121 WebKitGTK and WPE WebKit Security Advisory WSA-2022-0001http://www.openwall.com/lists/oss-security/2022/01/21/2mailing-listx_refsource_MLIST