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VulnerabilityPublished

CVE-2025-41725: JBL Flip 4 · Improper Restriction of Communication Channel to Intended Endpoints

Affects JBL Flip 4Source CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium : upgrade to 4.1.0 when convenient.

Data as of 13 Nov 2026, 15:34 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (CERTVDE)CVSS 3.16.5
Patch
Available – fixed in 4.1.0
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade JBL Flip 4 to 4.1.0.

Affected software

ProductAffectedFixed in
JBLFlip 4Affected
  • <4.1.0
Fixed in
  • 4.1.0

AI-suggested

Upgrade JBL Flip 4 devices to firmware version 4.1.0 or later, where this vulnerability is fixed. No other mitigation actions are indicated.

Description

JBL Flip 4 devices running firmware versions prior to 4.1.0 are vulnerable to a denial-of-service condition caused by receiving specific malformed Bluetooth messages from unauthenticated attackers. This vulnerability can cause the device to crash and become unavailable. The issue is fixed in firmware version 4.1.0.

References

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