PT-2025-33552 · Linux+3 · Linux Kernel+3

Syzbot · Published 2025-08-16 · Updated 2025-12-15 · CVE-2025-38509

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 Linux kernel contains a flaw within the mac80211 component where it does not reject Very High Throughput (VHT) operating mode notifications for unsupported channel widths. Specifically, 5 MHz and 10 MHz channel widths are invalid under the VHT specification. Accepting malformed notifications with these unsupported widths can lead to a warning due to invalid input within the ieee80211 chan width to rx bw() function. The issue was reported by syzbot.

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

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2025-15298

CVE-2025-38509

USN-7879-1

USN-7879-2

USN-7879-3

USN-7879-4

USN-7880-1

USN-7934-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Ubuntu

References · 234

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38509.json · Exploit
• https://ubuntu.com/security/CVE-2025-38612 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38515 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38666 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38664 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38473 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38526 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38507 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7879-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38351 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38585 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38561 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38491 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38628 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38619 · Vendor Advisory