PatchTheCVECVE-2025-20680: In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check
CVE-2025-20680 is a critical-severity flaw (CVSS 9.8) affecting nbiot sdk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418044; Issue ID: MSV-3482.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.8% (top 43%) |
| CISA exploited list | No |
| Weakness | CWE-122 |
| Published | 2025-07-08 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-20680?
nbiot sdk: upgrade to newer than 3.6. Exact commands for each OS are on this page.
Is CVE-2025-20680 being exploited?
CVE-2025-20680 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-20680 affect?
CVE-2025-20680 affects nbiot sdk. Severity is critical (CVSS 9.8). In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID
How urgent is CVE-2025-20680?
Priority 53/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
Related CVEs
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