PT-2026-45078 · Unknown · Socketcand

Ceolin · CVE-2026-5071 · Published 2026-05-30 · Updated 2026-07-22

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions SocketCAN (affected versions not specified)

Description The SocketCAN implementation contains an out-of-bounds read issue. The function zcan sendto ctx() validates the length of a user-provided buffer containing a socketcan frame object using only a NET ASSERT statement. In production builds where assertions are disabled, a userspace application can control the length passed to a sendto syscall to provide an incomplete or truncated frame. This causes the socketcan to can frame() function to dereference fields beyond the buffer end, potentially leading to denial-of-service crashes or the leakage of adjacent memory as the parsed contents are transmitted over the network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-5071

GHSA-C3W6-X7M3-3C58

Affected Products

Socketcand

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5071.json · Exploit
• https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3w6-x7m3-3c58 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-5071 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-5071 · Security Note
• https://github.com/zephyrproject-rtos/zephyr · Note
• https://t.me/cveNotify/165298 · Telegram Post
• https://twitter.com/CVEnew/status/2060839326728978644 · Twitter Post
• https://twitter.com/infoflowcloud/status/2060840209730719854 · Twitter Post
• https://t.me/CVEtracker/55320 · Telegram Post
• https://t.me/cveNotify/211331 · Telegram Post