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  4. CVE 2025 12035 bluetooth integer overflow in bluetooth classic
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Back to active CVEs
Medium · CVSS 6.5CVE-2025-12035

Bluetooth: Integer Overflow in Bluetooth Classic (BR/EDR) L2CAPCVE-2025-12035

Answer in brief

CVE-2025-12035 records a Medium severity (CVSS 6.5) vulnerability in Bluetooth: Integer Overflow in Bluetooth Classic (BR/EDR) L2CAP. The current sources do not mark it as known exploited. The current feed maps zephyrproject-rtos/Zephyr (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Dec 15, 2025Updated Oct 13, 2026Source checked Oct 13, 2026First seen by HOL Oct 13, 2026Material review Oct 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps zephyrproject-rtos/Zephyr (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
zephyrproject-rtos/Zephyrgeneric>=* <4.3.04.3.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for zephyrproject-rtos/Zephyr.
  2. 2Review the reported fix. Update zephyrproject-rtos/Zephyr to 4.3.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Dec 15, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 13, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
Upstream source description

An integer overflow condition exists in Bluetooth Host stack, within the bt_br_acl_recv routine a critical path for processing inbound BR/EDR L2CAP traffic.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • CAI Content Credentials | Integer Overflow or Wraparound (CWE-190)Also CWE-190
  • CAI Content Credentials | Improper Input Validation (CWE-20)Same generic ecosystem
  • CAI Content Credentials | Improper Access Control (CWE-284)Same generic ecosystem
  • CAI Content Credentials | Improper Access Control (CWE-284)Same generic ecosystem
  • CAI Content Credentials | Improper Certificate Validation (CWE-295)Same generic ecosystem
  • CAI Content Credentials | Improper Input Validation (CWE-20)Same generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-190
Source
CVE List V5
Source checked
Oct 13, 2026
References
1 linked source
Open source record