CVE-2021-27859

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

1.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 76.5% 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:L/UI:N/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

2021-12-15 16:14Z4 YR AGO

Last updated

2024-09-16 21:07Z2 YR AGO

Reserved

2021-03-01

Assigning CNA

certcc

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-862Missing AuthorizationClass

Data version

5.1

Document digest

225a320ad421dffbb40ce4b2b5e04d03c00d849a5dbfef97766143c87699197f

• www.zeroscience.mkhttps://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5681.phpx_refsource_MISC
• www.fatpipeinc.comhttps://www.fatpipeinc.com/support/cve-list.phpx_refsource_CONFIRM
• www.zeroscience.mkhttps://www.zeroscience.mk/codes/fatpipe_csrf.txtx_refsource_MISC