Security readout for executives and security teams
Plain-English summary
Vault could keep some leases alive longer than intended when those leases were created with batch tokens. For executives, the concern is delayed expiration of access-related objects in a secrets system. The source bundle does not provide a CVSS score, impact scope, or evidence of active exploitation.
Executive priority
Prioritize remediation where Vault manages sensitive production secrets or dynamic credentials. Without exploitation evidence or CVSS data, this is not proven emergency patching, but it deserves prompt upgrade planning.
Technical view
CVE-2020-25816 affects HashiCorp Vault and Vault Enterprise 1.0 and newer. Leases created with a batch token could outlive their configured TTL because expiration was not scheduled correctly. HashiCorp fixed the issue in Vault 1.4.7 and 1.5.4.
Likely exposure
Organizations running Vault or Vault Enterprise 1.0 or newer before fixed versions may be exposed, especially where batch tokens create leases. Exposure cannot be narrowed further from the provided sources.
Exploitation context
The source bundle marks CISA KEV as false and provides no cited evidence of active exploitation, public exploit use, or exploit prerequisites. Treat exploitation status as unconfirmed, not active.
Researcher notes
Key missing evidence includes CVSS scoring, affected configuration detail, proof-of-concept status, and exact lease types. The strongest confirmed facts are the TTL scheduling failure, batch-token condition, affected Vault family, and fixed versions.
Mitigation direction
- Upgrade Vault to 1.4.7, 1.5.4, or later supported releases.
- Check HashiCorp guidance for version-specific upgrade considerations.
- Review batch-token usage in Vault workflows.
- Revoke or rotate leases that may have outlived intended TTLs.
Validation and detection
- Inventory Vault and Vault Enterprise versions across all environments.
- Confirm affected deployments are at 1.4.7, 1.5.4, or later.
- Review lease records for unexpected survival beyond configured TTL.
- Check operational logs for batch-token-created lease patterns.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-25816 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.hashicorp.com/blog/category/vaultCVE reference · x_refsource_MISC
- https://github.com/hashicorp/vault/blob/master/CHANGELOG.md#154CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.