PT-2026-27680 · Linux+1 · Linux Kernel+1

Published 2026-01-01 · Updated 2026-04-20 · CVE-2026-23315

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

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

Description The Linux kernel contains a flaw in the mt76 module related to out-of-bounds access within the mt76 connac2 mac write txwi 80211() function. A check for frame length is insufficient, potentially allowing access to management fields, specifically mgmt->u.action.u.addba req.capab, leading to a possible out-of-bounds access.

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

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-23315

ECHO-1615-E37B-A859

OPENSUSE-SU-2026:20826-1

SUSE-SU-2026:21841-1

SUSE-SU-2026:21845-1

SUSE-SU-2026:21860-1

SUSE-SU-2026:21876-1

SUSE-SU-2026:21877-1

SUSE-SU-2026:21916-1

SUSE-SU-2026:21919-1

SUSE-SU-2026:2217-1

Affected Products

Linux Kernel

Mt76

References · 22

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23315.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2026-23315 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23315 · Vendor Advisory
• https://git.kernel.org/stable/c/9612d91f617231e03c49cb9b0c02f975a3b4f51f · Patch
• https://osv.dev/vulnerability/CVE-2026-23315 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23315 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23315 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-23315 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23315 · Vendor Advisory
• https://git.kernel.org/stable/c/0fb3b94a9431a3800717e5c3b6fa2e1045a15029 · Patch
• https://git.kernel.org/stable/c/4e10a730d1b511ff49723371ed6d694dd1b2c785 · Patch
• https://cve.org/CVERecord?id=CVE-2026-23315 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-23315 · Vendor Advisory
• https://git.kernel.org/stable/c/84419556359bc96d3fe1623d47a64c86542566cc · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-23315 · Security Note