PT-2026-36387 · Linux · Linux Kernel

CVE-2026-31752 · Published 2026-05-01 · Updated 2026-07-08

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The br nd send() function processes Neighbor Discovery (ND) options based on lengths provided within the options. A malformed option can cause the parser to advance beyond the calculated option span or utilize a source LLADDR (Link-Layer Address) option payload that is too short.

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

Exploit

Related Identifiers

CVE-2026-31752

ECHO-2FD8-EF08-C72F

OESA-2026-2493

OESA-2026-2494

SUSE-SU-2026:22433-1

SUSE-SU-2026:22436-1

SUSE-SU-2026:22458-1

SUSE-SU-2026:22460-1

SUSE-SU-2026:2722-1

SUSE-SU-2026:2799-1

Affected Products

Linux Kernel

References · 622

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31752.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-43170 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31752 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43492 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23352 · Security Note
• https://ubuntu.com/security/CVE-2026-31752 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43381 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31752 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31752 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31503 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:2799-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43261 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:22460-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43223 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:22458-1 · Vendor Advisory