CVE-2021-43978

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

0.76% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 55.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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

2021-12-08 18:30Z4 YR AGO

Last updated

2025-05-30 16:01Z1 YR AGO

Reserved

2021-11-17

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-522Insufficiently Protected CredentialsClass

Data version

5.1

Document digest

b29553c851deab6efdb39e160d3a5b805b2753eb5f746e0f107fd2dc2ce46189

• www.allegro.behttps://www.allegro.be/
• excellium-services.comhttps://excellium-services.com/cert-xlm-advisory/CVE-2021-43978
• cds.thalesgroup.comhttps://cds.thalesgroup.com/en/tcs-cert/CVE-2021-43978