Security readout for executives and security teams
Plain-English summary
CVE-2025-1634 is a high-severity availability flaw in quarkus-resteasy. Timed-out client requests can leave buffers unreleased, causing memory growth and eventual OutOfMemoryError crashes. The provided evidence indicates service disruption risk, not data theft or unauthorized modification.
Executive priority
Treat this as a high-priority availability risk for Quarkus API services. It can crash affected applications without authentication, so production internet-facing services should be assessed and patched promptly through vendor-supported updates.
Technical view
The flaw is a CWE-401 memory leak in the Quarkus RESTEasy extension. CVSS is 7.5: network reachable, low complexity, no privileges, no user interaction, with high availability impact only. The bundle lists Red Hat build of Quarkus 3 as affected.
Likely exposure
Exposure is most likely in services running Red Hat build of Quarkus 3 with quarkus-resteasy, especially externally reachable APIs. Several named Red Hat product versions are marked unaffected in the bundle, so teams should verify exact product, dependency, and vendor status.
Exploitation context
The bundle does not support active exploitation; KEV is false. The described abuse path is availability-focused: repeated requests that timeout can cause unreleased memory and eventual application crash. No source indicates confidentiality or integrity impact.
Researcher notes
Evidence points to a timeout-triggered buffer release failure in quarkus-resteasy. The affected matrix is narrow in the supplied bundle: Red Hat build of Quarkus 3 is affected, while several specific Red Hat products are listed unaffected. Do not assume broader product impact without vendor confirmation.
Mitigation direction
- Apply the relevant Red Hat advisory updates where they apply.
- Check Red Hat CVE guidance for exact fixed package versions.
- Inventory Quarkus services using quarkus-resteasy or RESTEasy Classic.
- Prioritize externally reachable services and high-availability workloads.
- Monitor memory growth and OutOfMemoryError events until patched.
Validation and detection
- Confirm whether applications use Red Hat build of Quarkus 3.
- Check dependency trees for quarkus-resteasy presence.
- Compare installed packages against Red Hat advisory applicability.
- Review service logs for request timeouts followed by memory growth.
- Verify patched deployments no longer show sustained leak behavior.
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-401: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-1634 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-2025:12511CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:1884CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:1885CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:2067CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:23417CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:9922CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-1634CVE reference, redhat · vdb-entry, x_refsource_REDHAT
- RHBZ#2347319CVE reference, redhat · issue-tracking, x_refsource_REDHAT
- https://github.com/quarkusio/quarkus/issues/46412CVE reference, redhat
- https://github.com/quarkusio/quarkus/pull/46419CVE 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.