CVE-2021-35217

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

72.79% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.4% 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

2021-09-08 13:15Z4 YR AGO

Last updated

2024-09-16 20:58Z1 YR AGO

Reserved

2021-06-22

Assigning CNA

SolarWinds

Record state

PUBLISHED

Severity

High (CVSS 8.9)

CNA CVSS vector

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

Weaknesses

• CWE-502Deserialization of Untrusted DataBase

Data version

5.1

Document digest

cbf328fe998f43ec8ca451bf73d85b4cad8f30f542539045f95983e3a056048e

• documentation.solarwinds.comhttps://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmx_refsource_MISC
• documentation.solarwinds.comhttps://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htmx_refsource_MISC
• www.solarwinds.comhttps://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217x_refsource_MISC
• www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-21-1247/x_refsource_MISC