CVE-2025-10457: zephyrproject-rtos Zephyr · Improperly Implemented Security Check for Standard
Affects zephyrproject-rtos ZephyrSource CVE Database V5
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
- 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:LExploitation evidence
Disclosed: evidence found.
CVE published 19 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| zephyrproject-rtosZephyr | Affected
| Fixed in
|
GitHubZephyrpkg:github/ZephyrOther threats | Affected
| Fixed in
|
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.