CVE intelligence

CVE-2026-74404

Vulnerability intelligence

Published Aug 15, 2026Sources checked Oct 8, 2026

7.8HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-74404 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-74404?

In the Linux kernel, the following vulnerability has been resolved:

crypto: ccp - Fix snp_filter_reserved_mem_regions() off-by-one

Sashiko notes:

> regarding the bounds check in snp_filter_reserved_mem_regions() > called via walk_iomem_res_desc(): does the check > if ((range_list->num_elements * 16 + 8) > PAGE_SIZE) > allow an off-by-one heap buffer overflow? > > If range_list->num_elements is 255, 255 * 16 + 8 = 4088, which is <= 4096. > Writing range->base (8 bytes) fills 4088-4095, but writing range->page_count > (4 bytes) would write to 4096-4099, overflowing the kzalloc-allocated > PAGE_SIZE buffer.

Fix this by accounting for the entry about to be written to, in addition to the entries that are already allocated.

Source: NVD