CVE-2026-43330

medium Red Hat
CVSS v3 Base Score
7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS Score
0.0%
Exploitation probability in 30 days
Top 98% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
None
Availability
High
Published: May 8, 2026 (63 days ago)
Last Modified: May 8, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's caam cryptographic accelerator driver. When processing a Hash-based Message Authentication Code (HMAC) key that exceeds the block size, the driver incorrectly handles memory allocation and copying. This can lead to an overflow, where the system attempts to read beyond the intended memory buffer, potentially corrupting neighboring memory. This memory corruption could lead to system instability or denial of service.

CWE

CWE-125

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 git.kernel.org