PT-2025-37645 · Linux+3 · Linux Kernel+3

Published 2025-09-15 · Updated 2025-09-16 · CVE-2023-53203

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 A potential NULL pointer dereference issue was identified and resolved in the mt7996 mac write txwi() function when handling the vif pointer within the mt76 and mt7996 drivers. The fix involves exporting and reusing the mt76 connac2 mac tx rate val utility routine in the mt7996 driver.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-05939

CVE-2023-53203

Affected Products

Astra Linux

Linux Kernel

Mt76

Mt7996

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53203.json · Exploit
• https://git.kernel.org/stable/c/0b8e2d69467f78a7c9d87b452220e87012435e33 · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53203 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53203 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53203 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53203 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53203 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53203 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53203 · Security Note
• https://git.kernel.org/stable/c/0765b5b4719f0435bb019370b317d2fb8138eb34 · Patch
• https://bdu.fstec.ru/vul/2026-05939 · Security Note
• https://ubuntu.com/security/CVE-2023-53203 · Vendor Advisory
• https://twitter.com/CVEnew/status/1967602095269237185 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2025091509-CVE-2023-53203-4a9c@gregkh · Note
• https://git.kernel.org/linus/0b8e2d69467f78a7c9d87b452220e87012435e33 · Note