Security readout for executives and security teams
Plain-English summary
CVE-2025-44559 is a denial-of-service flaw in Realtek's RTL8762E BLE SDK v1.4.0. An attacker physically nearby, within Bluetooth range, could disrupt availability by sending crafted BLE control traffic. The sources do not identify affected downstream products or a named patch.
Executive priority
Treat this as a moderate, proximity-limited availability risk. It is most urgent for safety, access-control, healthcare, industrial, or operational devices where a short BLE outage could interrupt business processes.
Technical view
The issue is in the Bluetooth Low Energy stack of Realtek RTL8762E BLE SDK v1.4.0 and is mapped to CWE-400. CVSS 3.1 is 6.5: adjacent attack vector, low complexity, no privileges, no user interaction, and high availability impact only.
Likely exposure
Exposure is most likely in embedded or IoT devices that use Realtek RTL8762E BLE SDK v1.4.0. The source bundle lists affected vendor/product fields as n/a, so specific commercial devices cannot be confirmed from these sources.
Exploitation context
The CVE describes an attacker within Bluetooth range sending crafted control packets to cause DoS. KEV is false, and the bundle does not establish active in-the-wild exploitation. A public GitHub reference exists, but this assessment avoids exploit procedure details.
Researcher notes
Evidence is narrow: the CVE names the SDK and version, CVSS vector, CWE-400, and a GitHub reference. It does not provide a vendor advisory, affected downstream product list, fixed version, or confirmed exploitation status.
Mitigation direction
- Inventory products or firmware that may include Realtek RTL8762E BLE SDK v1.4.0.
- Check Realtek and device-vendor guidance for patched SDK or firmware availability.
- Prioritize vendor updates for BLE-enabled assets supporting critical operations.
- Limit physical Bluetooth proximity exposure for critical devices pending vendor guidance.
- Request written vendor confirmation for affected firmware versions and remediation status.
Validation and detection
- Review SBOMs, firmware notes, or vendor attestations for RTL8762E BLE SDK v1.4.0 usage.
- Map BLE-enabled assets where local proximity disruption would affect operations.
- Confirm whether vendors have published a fixed SDK, firmware update, or workaround.
- Perform availability validation only in an authorized lab with non-production devices.
- Document devices where SDK provenance cannot be confirmed.
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-400: 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-2025-44559 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
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/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:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H2.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:A/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.
- 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
- https://github.com/yangting111/BLE_TEST/blob/main/result/PoC/Realtek/Cross-layer_Interaction_Deadlock.mdCVE reference, mitre
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.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.