Security readout for executives and security teams
Plain-English summary
CVE-2025-2240 is a denial-of-service flaw in SmallRye Fault Tolerance. Calls to the metrics URI can create new objects without proper control, consuming memory until the service may fail. The business risk is service outage, especially where metrics endpoints are reachable without strong access controls.
Executive priority
Prioritize remediation for internet-facing or partner-facing services where metrics endpoints are exposed. This is not described as data theft or code execution, but it can cause outage. Internal-only deployments still need review because monitoring endpoints are often broadly reachable inside networks.
Technical view
SmallRye Fault Tolerance can allocate a new object in meterMap on each metrics URI call, leading to out-of-memory conditions. The CVSS 3.1 score is 7.5 with network attack vector, low complexity, no privileges, no user interaction, and high availability impact.
Likely exposure
Most likely exposed in Java services using affected smallrye-fault-tolerance-core versions 6.3.0 or 6.5.0, or affected Red Hat products such as Apicurio Registry 2/3, Camel K 1, and JBoss EAP 7. Actual exposure depends on whether the metrics URI is reachable.
Exploitation context
The source bundle states the issue is externally triggered through metrics URI calls. CISA KEV is false, and the provided sources do not show active exploitation. The CVSS vector indicates unauthenticated network reachability, but no exploit details are needed to assess outage risk.
Researcher notes
Evidence is strongest for availability impact through uncontrolled allocation during metrics access. The bundle names affected upstream versions and several Red Hat product statuses, but it does not provide detailed fixed version mapping for every product. Avoid assuming all SmallRye consumers are affected without dependency and endpoint validation.
Mitigation direction
- Apply relevant vendor updates from Red Hat advisories RHSA-2025:3376, RHSA-2025:3541, and RHSA-2025:3543.
- Update affected SmallRye Fault Tolerance components when fixed versions are available from your vendor.
- Restrict metrics URI access to trusted networks, authenticated monitoring systems, or internal service paths.
- Review Red Hat’s CVE page for product-specific status before changing unaffected components.
- For Red Hat Fuse 7, treat status as unknown and confirm with vendor guidance.
Validation and detection
- Inventory services using smallrye-fault-tolerance-core or related Red Hat packaged components.
- Compare deployed product status against the affected and unaffected entries in the source bundle.
- Confirm whether the metrics URI is reachable from untrusted networks or unauthenticated clients.
- Check service memory trends and request logs for abnormal metrics endpoint activity.
- After updating, verify installed component versions against the applicable Red Hat advisory.
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.
CWE-1325: Exact CWE lookup
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Open ATT&CK lookupCVE-2025-2240 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6redhatVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineredhat
Made public.
- Source timelineredhat
Reported to Red Hat.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- RHSA-2025:3376CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:3541CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:3543CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-2240CVE reference, redhat · vdb-entry, x_refsource_REDHAT
- RHBZ#2351452CVE reference, redhat · issue-tracking, x_refsource_REDHAT
- https://github.com/advisories/GHSA-gfh6-3pqw-x2j4CVE reference, redhat
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.
Improperly Controlled Sequential Memory Allocation
Improperly Controlled Sequential Memory Allocation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.