synced 9 MIN AGO
01 Record

CVE-2021-44479

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.

MediumPUBLISHEDCNA: mitre
CNA base score6.1 CVSS v3.xCVSS:3.1/AC:L/AV:L/A:L/C:H/I:N/PR:L/S:U/UI:N

02 Description

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.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.27% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 19.1% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-12-01 14:56Z4 YR AGO
Last updated
2024-08-04 04:25Z2 YR AGO
Reserved
2021-12-01
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Medium (CVSS 6.1)
CNA CVSS vector
CVSS:3.1/AC:L/AV:L/A:L/C:H/I:N/PR:L/S:U/UI:N
Weaknesses
Data version
5.1
Document digest
6768070c6ee7fefe127b6b961348f5a1f40bc6d7c2623f094c6f09dcb18e30f7

05 Affected products

VendorProductVersionsPlatforms
nxpkinetis_k82Not specified—
nxpkinetis_k82_firmwareNot specified—

06 References