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CVE Record

CVE-2025-44531: An issue in Realtek RTL8762EKF-EVB RTL8762E SDK v1.4.0 allows attackers to cause a Denial of Service (DoS)...

An issue in Realtek RTL8762EKF-EVB RTL8762E SDK v1.4.0 allows attackers to cause a Denial of Service (DoS) via sending a crafted before a pairing public key is received during a Bluetooth connection attempt.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This is a Bluetooth connection handling flaw in Realtek RTL8762E SDK v1.4.0 that can crash or deny service during pairing. The main business risk is device availability, not data theft, based on the CVSS vector. Exposure is hard to scope because the CVE bundle lacks precise affected CPEs or remediation details.

Executive priority

Prioritize identification and vendor follow-up for Bluetooth-enabled products using the named Realtek SDK. The issue is high severity because it can affect availability without authentication, but urgency depends on whether your products include the vulnerable SDK and have exposed pairing workflows.

Technical view

The CVE describes a CWE-400 resource consumption issue triggered by a crafted Bluetooth pairing message before a pairing public key is received. CVSS 3.1 is 7.5, with no privileges, no user interaction, unchanged scope, and high availability impact only.

Likely exposure

Likely exposure is limited to products, firmware, or development work using Realtek RTL8762EKF-EVB RTL8762E SDK v1.4.0. The source bundle lists affected vendor, product, versions, and CPEs as n/a, so downstream device exposure is not fully defined.

Exploitation context

The CVE cites a public GitHub PoC-style reference. The bundle says KEV is false and provides no evidence of active exploitation. Treat exploitability as plausible in Bluetooth pairing contexts, but do not assume real-world exploitation without additional evidence.

Researcher notes

The public data is thin: no structured CPEs, no vendor advisory, and no named fix in the bundle. The strongest grounded facts are the CVE description, CVSS vector, CWE-400 classification, false KEV status, and the cited GitHub reference.

Mitigation direction

  • Check Realtek and device vendor guidance for firmware or SDK fixes.
  • Inventory products and firmware built from RTL8762E SDK v1.4.0.
  • Limit Bluetooth pairing exposure where operationally possible.
  • Monitor affected devices for crashes, resets, or repeated pairing failures.
  • Prioritize firmware updates when a vendor-supported remediation is available.

Validation and detection

  • Confirm whether any shipped firmware uses RTL8762E SDK v1.4.0.
  • Review product SBOMs, SDK manifests, and vendor firmware release notes.
  • Check device telemetry for availability failures during Bluetooth pairing attempts.
  • Track CVE and vendor advisories for corrected affected-product data.
  • Validate remediation only in controlled lab or vendor-approved testing.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

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 lookup
cve · low confidence lookup

CVE-2025-44531 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2025-44531Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-400 · source CWE mapping

Uncontrolled Resource Consumption

Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.