CVE-2026-43359 — medium severity vulnerability | Dragons Community

Signals

NVD · CVE-2026-64604 · In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8NVD · CVE-2026-64603 · In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-hid: Protect ACPI notify handler against recursion Since commit e2ffcda1NVD · CVE-2026-64602 · In the Linux kernel, the following vulnerability has been resolved: iio: adc: spear: Initialize completion before requesting IRQ In the report from Jaeyoung ChuNVD · CVE-2026-64601 · In the Linux kernel, the following vulnerability has been resolved: ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on eachCISA KEV · CVE-2026-20349 · Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection Vulnerability · Added 2026-08-11 · Due 2026-08-14CISA KEV · CVE-2026-68820 · Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability · Added 2026-08-11 · Due 2026-08-25NVD · CVE-2026-64604 · In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8NVD · CVE-2026-64603 · In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-hid: Protect ACPI notify handler against recursion Since commit e2ffcda1NVD · CVE-2026-64602 · In the Linux kernel, the following vulnerability has been resolved: iio: adc: spear: Initialize completion before requesting IRQ In the report from Jaeyoung ChuNVD · CVE-2026-64601 · In the Linux kernel, the following vulnerability has been resolved: ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on eachCISA KEV · CVE-2026-20349 · Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection Vulnerability · Added 2026-08-11 · Due 2026-08-14CISA KEV · CVE-2026-68820 · Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability · Added 2026-08-11 · Due 2026-08-25

DRAGONS COMMUNITY

CVE-2026-43359

· MEDIUMAnalyzed

CVSS v3.1

5.5

EPSS

0.12%

Published

May 8, 2026

Modified

May 15, 2026

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction abort on set received ioctl due to item overflow If the set received ioctl fails due to an item overflow when attempting to add the BTRFS_UUID_KEY_RECEIVED_SUBVOL we have to abort the transaction since we did some metadata updates before. This means that if a user calls this ioctl with the same received UUID field for a lot of subvolumes, we will hit the overflow, trigger the transaction abort and turn the filesystem into RO mode. A malicious user could exploit this, and this ioctl does not even requires that a user has admin privileges (CAP_SYS_ADMIN), only that he/she owns the subvolume. Fix this by doing an early check for item overflow before starting a transaction. This is also race safe because we are holding the subvol_sem semaphore in exclusive (write) mode. A test case for fstests will follow soon.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-191

Affected Products (8)

linux · linux_kernel (up to 6.1.167)vulnerable

linux · linux_kernel (up to 6.6.130)vulnerable

linux · linux_kernel (up to 6.12.78)vulnerable

linux · linux_kernel (up to 6.18.19)vulnerable

linux · linux_kernel (up to 6.19.9)vulnerable

linux · linux_kernelvulnerable

linux · linux_kernelvulnerable

linux · linux_kernelvulnerable

References (6)

https://git.kernel.org/stable/c/2e57b8cac2ba0d38aac76c1ecdfd8b899e3581a5

Patch

https://git.kernel.org/stable/c/41fb97353ff58fa4f31904c343fc8e3df2f7517d

Patch

https://git.kernel.org/stable/c/87f2c46003fce4d739138aab4af1942b1afdadac

Patch

https://git.kernel.org/stable/c/b19c0465e4daad5aa8f60552ea0578cf31a11b1e

Patch

https://git.kernel.org/stable/c/b9914db13ac15aca3b74544c0bb1a2e0dad1f174

Patch

https://git.kernel.org/stable/c/d11aefe654a04fc41996d254748d6a38b6b0a7be

Patch

KEV Catalog EPSS Scores Vendors All CVEs