PT-2026-39048 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-21 · CVE-2026-43387

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 An issue exists in the rtl8723bs staging driver where the rtw get ie ex() function does not properly validate data within the frame. This lack of length verification can lead to an out-of-bounds read when processing frame data.

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

Related Identifiers

CVE-2026-43387

Affected Products

Linux Kernel

References · 20

• https://cve.org/CVERecord?id=CVE-2026-43387 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43387 · Security Note
• https://ubuntu.com/security/CVE-2026-43387 · Vendor Advisory
• https://git.kernel.org/stable/c/ac38856092b4c994f94343251b30520bdeb7f475 · Patch
• https://git.kernel.org/stable/c/740bca8bbdb707c0e4bb11e3316deb2f04fc7ce1 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43387 · Vendor Advisory
• https://git.kernel.org/stable/c/35969c3a208a07cb8642301df5869c34e2db7071 · Patch
• https://git.kernel.org/stable/c/f0109b9d3e1e455429279d602f6276e34689750a · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-43387 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-43387 · Vendor Advisory
• https://git.kernel.org/stable/c/9a4cd4c37593cc8b8d28f9a6732b490a8032006a · Patch
• https://git.kernel.org/stable/c/6d62fa548387e159a21ea95132c09bfc96d336ed · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43387 · Vendor Advisory
• https://git.kernel.org/stable/c/821f7d759fb2de33c5e5b0c4981181c4d0c3e9b1 · Patch
• https://git.kernel.org/stable/c/8097a48c606a9306281ea7bd73bf2afc97553733 · Patch