BIT-vault-2025-6203Published

Vault unauthenticated denial of service through complex json payload

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2025-6203

Published

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.

Source published: 28 Aug 2025 19:36:09 UTC
Source modified: 23 Oct 2025 18:18:34 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

euvd · EUVD-2025-26143

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Aug 28, 2025, 7:36:09 PM

dateUpdated: Oct 23, 2025, 6:18:34 PM

3 related source bulletins · separate from aliases

openSUSE-SU-2025:15579-1: openbao-2.4.1-1.1 on GA media

CVE-2025-6203

openSUSE-SU-2025:15538-1: govulncheck-vulndb-0.0.20250908T141310-1.1 on GA media

CVE-2024-52284 · CVE-2024-58259 · CVE-2025-51667 · CVE-2025-53884 · CVE-2025-54467 · CVE-2025-55190 · CVE-2025-56760 · CVE-2025-56761 · CVE-2025-58355 · CVE-2025-6203 · CVE-2025-8077 · CVE-2025-9566

WID-SEC-W-2025-1925: Hashicorp Vault: Schwachstelle ermöglicht Denial of Service

CVE-2025-6203

Source published: Aug 28, 2025, 7:36:09 PM (timezone not stated)
Source modified: Oct 23, 2025, 6:18:34 PM (timezone not stated)
Observed here: 11 Nov 2026 04:29:55 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd · CVE-2025-6203

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-770

Original publisher date fields

published: 2025-08-28T20:15:43.817

lastModified: 2026-09-26T00:10:00.127

2 source CPE criteria · context only

cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 28 Aug 2025 20:15:43 UTC
Source modified: 26 Sep 2026 00:10:00 UTC
Observed here: 25 Oct 2026 03:17:27 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv · GHSA-8f82-53h8-2p34

Published

Source published: 28 Aug 2025 21:31:26 UTC
Source modified: 10 Sep 2026 03:50:57 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Publisher rating · HIGH

osv · GO-2025-3924

Published

HashiCorp Vault Community Edition Denial of Service Though Complex JSON Payloads in github.com/hashicorp/vault

Source published: 8 Sep 2025 14:13:10 UTC
Source modified: 4 Feb 2026 03:42:27 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.