CVE-2021-33178

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

1.94% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 79.9% 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:H/UI:N/S:U/C:N/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

2021-10-14 14:56Z5 YR AGO

Last updated

2025-11-03 19:25Z11 MO AGO

Reserved

2021-05-18

Assigning CNA

SNPS

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

7dc90f14b429632401b21ded2738b39afc69a07bfecd59f28ba89a8ac8ddc003

• www.synopsys.comhttps://www.synopsys.com/blogs/software-security/cyrc-advisory-nagios-xix_refsource_MISC
• nagvis.orghttps://nagvis.org/downloads/changelog/1.9.29x_refsource_MISC
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00000.html