6.5

CVE-2025-4166: hashicorp vault

CVSS: 6.5v3.1MediumAnalyzed
AliasesCGA-2j2f-w7rx-2292CGA-8m32-8jfc-qgf4CGA-9w6f-557g-53wr
Published 02-05-2025Last modified 08-05-2025
Open JSON

Vulnerability summary

CVE-2025-4166 is a medium (CVSS 6.5) vulnerability in hashicorp vault. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.6% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.45%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 4
OPENSUSE-SU-2025:15059-1CGA-225R-H6WP-M6GMCGA-3PHG-7Q62-WRFPCGA-FQ3Q-Q8XH-5XX3

Timeline

  1. 02-05-2025
    PublishedVulnerability first disclosed.
  2. 08-05-2025
    Last modifiedVulnerability information updated.

Description

Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

+0.02 pp

From 0.43% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard7 products
  • splunk-otel-collector< 0.125.0-r1
  • splunk-otel-collector-compat< 0.125.0-r1
  • splunk-otel-collector-doc< 0.125.0-r1
  • splunk-otel-collector-fips< 0.125.0-r1
  • vault-1.16All versions (No fix recorded)
Wolfi3 products
  • splunk-otel-collector< 0.125.0-r1
  • splunk-otel-collector-compat< 0.125.0-r1
  • splunk-otel-collector-doc< 0.125.0-r1
Hashicorp2 products
  • vault≥ 0.3.0, < 1.19.2 | ≥ 0.3.0, < 1.16.20 | ≥ 0.3.0, < 1.19.3 | ≥ 1.17.0, < 1.17.16 | ≥ 1.18.0, < 1.18.9 | ≥ 1.19.0, < 1.19.3
  • vault enterprise≥ 0.10.0, < 1.19.2
Github.com/hashicorp1 product
  • vault≥ 0.3.0, < 1.19.3
Openbao1 product
Opensuse1 product
  • openbao&distro=openSUSE Tumbleweed< 2.2.2-1.1

6 vendors · 15 products

References

8 links