01 Record

CVE-2025-39986

can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow

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: 0.17% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 6.3% of scored records. A rank, not a probability.
NVD base score: 7.8 (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:H/A:H
NVD analysis status: Deferred. NVD last modified this record on 2026-10-19.
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: 2025-10-15 07:56Z1 YR AGO
Last updated: 2026-08-05 12:06Z2 MO AGO
Reserved: 2025-04-16
Assigning CNA: Linux
Record state: PUBLISHED
Severity: High (CVSS 7.8)
CNA CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: b7cfdc38f7d0e8c7d2c25891f7dc9017f93e62c4835fdfb2cfc23a2b81b8865b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0738eff14d817a02ab082c392c96a1613006f158 to < 063539db42203b29d5aa2adf0cae3d68c646a6b6, 0738eff14d817a02ab082c392c96a1613006f158 to < 4f382cc887adca8478b9d3e6b81aa6698a95fff4, 0738eff14d817a02ab082c392c96a1613006f158 to < 60463a1c138900494cb3adae41142a11cd8feb3c, 0738eff14d817a02ab082c392c96a1613006f158 to < a61ff7ac93270d20ca426c027d6d01c8ac8e904c, 0738eff14d817a02ab082c392c96a1613006f158 to < 2e423e1990f3972cbea779883fef52c2f2acb858, 0738eff14d817a02ab082c392c96a1613006f158 to < de77841652e57afbc46e9e1dbf51ee364fc008e1, 0738eff14d817a02ab082c392c96a1613006f158 to < 7f7b21026a6febdb749f6f6f950427245aa86cce, 0738eff14d817a02ab082c392c96a1613006f158 to < 61da0bd4102c459823fbe6b8b43b01fb6ace4a22, 4.4—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/063539db42203b29d5aa2adf0cae3d68c646a6b6
git.kernel.orghttps://git.kernel.org/stable/c/4f382cc887adca8478b9d3e6b81aa6698a95fff4
git.kernel.orghttps://git.kernel.org/stable/c/60463a1c138900494cb3adae41142a11cd8feb3c
git.kernel.orghttps://git.kernel.org/stable/c/a61ff7ac93270d20ca426c027d6d01c8ac8e904c
git.kernel.orghttps://git.kernel.org/stable/c/2e423e1990f3972cbea779883fef52c2f2acb858
git.kernel.orghttps://git.kernel.org/stable/c/de77841652e57afbc46e9e1dbf51ee364fc008e1
git.kernel.orghttps://git.kernel.org/stable/c/7f7b21026a6febdb749f6f6f950427245aa86cce
git.kernel.orghttps://git.kernel.org/stable/c/61da0bd4102c459823fbe6b8b43b01fb6ace4a22

07 Fixed in

Debian 12

linux
Fixed in 6.1.158-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.57-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.16.10-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.