CVE-2021-28372

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

2.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 84.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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

2021-08-17 21:48Z5 YR AGO

Last updated

2024-08-03 21:40Z2 YR AGO

Reserved

2021-03-13

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-290Authentication Bypass by SpoofingBase

Data version

5.1

Document digest

681a87a43a97f8ebb0f66d3752e0e169bf53e82df33d924eadc77770989b0a8e

• www.throughtek.comhttps://www.throughtek.com/kalay_overview.htmlx_refsource_MISC
• github.comhttps://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0020/FEYE-2021-0020.mdx_refsource_MISC
• www.fireeye.comhttps://www.fireeye.com/blog/threat-research/2021/08/mandiant-discloses-critical-vulnerability-affecting-iot-devices.htmlx_refsource_MISC