PatchTheCVECVE-2021-44479: NXP Kinetis K82 devices have a buffer over-read via a crafted wlength value in a GET Status-Other request duri
CVE-2021-44479 is a medium-severity flaw (CVSS 6.1) affecting kinetis k82 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
NXP Kinetis K82 devices have a buffer over-read via a crafted wlength value in a GET Status-Other request during use of USB In-System Programming (ISP) mode. This discloses protected flash memory.
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 81%) |
| CISA exploited list | No |
| Weakness | CWE-125 |
| Published | 2021-12-01 |
| 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-2021-44479?
kinetis k82 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2021-44479 being exploited?
CVE-2021-44479 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-2021-44479 affect?
CVE-2021-44479 affects kinetis k82 firmware. Severity is medium (CVSS 6.1). NXP Kinetis K82 devices have a buffer over-read via a crafted wlength value in a GET Status-Other request during use of USB In-System Programming (ISP) mode. This discloses protected flash memory.
How urgent is CVE-2021-44479?
Priority 26/100. No elevated risk signals yet.