PatchTheCVECVE-2026-6232: An out-of-bounds write vulnerability in the SPI host command interface of Semtech's LR11xx transceiver firmwar
CVE-2026-6232 is a medium-severity flaw (CVSS 5.2) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An out-of-bounds write vulnerability in the SPI host command interface of Semtech's LR11xx transceiver firmware where a crafted SPI host command with an oversized length field can cause the firmware to write up to 254 arbitrary bytes past the bounds of an internal, non-persistent memory buffer. Exploitation requires physical access to the device and logical access to the SPI bus.
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 5.2 (Medium) |
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 94%) |
| CISA exploited list | No |
| Weakness | CWE-787 |
| Published | 2026-10-12 |
| Last modified | 2026-10-16 |
Last updated 2026-10-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
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-2026-6232?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-6232 being exploited?
CVE-2026-6232 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-2026-6232 affect?
CVE-2026-6232 affects affected software. Severity is medium (CVSS 5.2). An out-of-bounds write vulnerability in the SPI host command interface of Semtech's LR11xx transceiver firmware where a crafted SPI host command with an oversized length field can cause the firmware to write up to 254 arbitrary bytes past t
How urgent is CVE-2026-6232?
Priority 20/100. No elevated risk signals yet.