Linux Linux Kernel Vulnerability Rated 7.8 CVSS

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-74747

Key Details

CVE	CVE-2026-74747
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-15
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel
Exploitation prediction (EPSS)	0.17% probability of exploitation in the next 30 days (5% percentile) -- FIRST.org's EPSS model.

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

ipvs: revalidate ihl to prevent out-of-bounds access

While the outer IP header is already pulled into the skb head,

we must be careful and revalidate the embedded headers after

reading them from the skb frags to prevent out-of-bounds

access.

One such place reported by Sashiko is ip_vs_nat_icmp() where

local process can change the ihl field and after

skb_ensure_writable() we can see larger value which is a

problem for the ip_send_check(cih) calls.

Add check to drop the packet if the ihl field is changed. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74747
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74747

Source

Reference

NVD

CVE