Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-6203

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
28/08/2025
Last modified:
18/12/2025

Description

A malicious user may submit a specially-crafted complex payload that otherwise meets the default request size limit which results in excessive memory and CPU consumption of Vault. This may lead to a timeout in Vault’s auditing subroutine, potentially resulting in the Vault server to become unresponsive. This vulnerability, CVE-2025-6203, is fixed in Vault Community Edition 1.20.3 and Vault Enterprise 1.20.3, 1.19.9, 1.18.14, and 1.16.25.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* 1.15.0 (including) 1.16.27 (excluding)
cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:* 1.15.0 (including) 1.21.0 (excluding)
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* 1.18.0 (including) 1.18.15 (excluding)
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* 1.19.0 (including) 1.19.11 (excluding)
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* 1.20.0 (including) 1.20.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools