Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-6337

20
FAUCET Score

CVE-2023-6337 affects HashiCorp Vault and Vault Enterprise versions 1.12.0 and newer, allowing a denial of service through memory exhaustion. The vulnerability arises when Vault attempts to map large unauthenticated or authenticated HTTP requests to memory, leading to host memory exhaustion and potential Vault crashes. This high-severity vulnerability (CVSS 7.5) can be exploited remotely with low attack complexity and no user interaction, resulting in high availability impact. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.12.0CPE matchmatch criteria
cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:*
<= 1.12.0CPE matchmatch criteria
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
>= 1.13.0, < 1.13.12CPE matchmatch criteria
cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:*
>= 1.13.0, < 1.13.12CPE matchmatch criteria
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
>= 1.14.0, < 1.14.8CPE matchmatch criteria
cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 28th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

gopatch availablevia ghsa
Product: github.com/hashicorp/vaultFixed in: 1.15.4
gopatch availablevia ghsa
Product: github.com/hashicorp/vaultFixed in: 1.14.8
gopatch availablevia ghsa
Product: github.com/hashicorp/vaultFixed in: 1.13.12
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 1.12.12-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 1.12.12-1
microsoftpatch availablevia msrc
Product: azl3 cert-manager 1.12.12-1 on Azure Linux 3.0Fixed in: 1.12.12-1
microsoftpatch availablevia msrc
Product: azl3 cert-manager 1.11.2-8 on Azure Linux 3.0Fixed in: 1.12.12-1
microsoftpatch availablevia msrc
Product: 17766-17084Fixed in: 1.12.12-1
microsoftpatch availablevia msrc
Product: 19863-17084Fixed in: 1.12.12-1

Vendor Advisories (4)

microsoft2024-Sep/CVE-2023-6337

CVE-2023-6337

Sep 10, 2024
microsoft2023-Dec/CVE-2023-6337Important

Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests

Dec 12, 2023
goGHSA-6p62-6cg9-f5f5high

Memory exhaustion in HashiCorp Vault

Dec 9, 2023
redhatCVE-2023-6337Moderate

hashicorp-vault: denial of service through memory exhaustion

Dec 8, 2023

References

discuss.hashicorp.com / t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741
Vendor Advisory
security.netapp.com / advisory/ntap-20240112-0006