CVE-2021-3033

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

1.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 67.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/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

2021-02-10 17:35Z5 YR AGO

Last updated

2024-09-17 03:14Z2 YR AGO

Reserved

2021-01-06

Assigning CNA

palo_alto

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.1

Document digest

e5e377f859086435e12da5e002f5f894a8b83a2001b849fb3a8d6903121e6ca2

• security.paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2021-3033x_refsource_MISC