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CVE-2025-10457VulnerabilityPublished Updated

CVE-2025-10457: zephyrproject-rtos Zephyr · Improperly Implemented Security Check for Standard

Affects zephyrproject-rtos ZephyrSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium : upgrade to 4.3.0 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.3.0
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 2026-10-25.

What to do

Upgrade zephyrproject-rtos Zephyr to 4.3.0.

Affected software

ProductAffectedFixed in
zephyrproject-rtosZephyrAffected
  • <4.3.0
Fixed in
  • 4.3.0
GitHubZephyrpkg:github/ZephyrOther threatsAffected
  • <4.3.0
Fixed in
  • 4.3.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in Zephyr RTOS version 4.3.0 and later. Users should upgrade to version 4.3.0 or newer to remediate this vulnerability. No additional mitigation guidance is provided.

Description

CVE-2025-10457 is a medium severity vulnerability in Zephyr RTOS versions prior to 4.3.0. The issue arises because the BLE connection response handler does not verify if a response is expected and relies solely on identifier matching. This improper security check can lead to incorrect handling of BLE connection responses, potentially causing denial of service.

References

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