CVE-2021-4295

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

0.72% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 51.1% 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

2022-12-29 08:08Z3 YR AGO

Last updated

2024-08-03 17:23Z2 YR AGO

Reserved

2022-12-29

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-611Improper Restriction of XML External Entity ReferenceBase

Data version

5.1

Document digest

369b31acef28fc30bb08c14e878801bc099bbdba9ff9fbb56bb3655966eb0c7c

• vuldb.comhttps://vuldb.com/?id.217018vdb-entrytechnical-description
• vuldb.comhttps://vuldb.com/?ctiid.217018signaturepermissions-required
• github.comhttps://github.com/onc-healthit/code-validator-api/pull/97issue-tracking
• github.comhttps://github.com/onc-healthit/code-validator-api/commit/fbd8ea121755a2d3d116b13f235bc8b61d8449afpatch
• github.comhttps://github.com/onc-healthit/code-validator-api/releases/tag/1.0.31patch