CVE-2026-22988

MEDIUM
2026-01-23 416baaa9-dc9f-4396-8d5f-8c081fb06d67
5.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch Released
Feb 26, 2026 - 18:51 nvd
Patch available
CVE Published
Jan 23, 2026 - 16:15 nvd
MEDIUM 5.5

Tags

Linux Linux Kernel Redhat Suse

Description

In the Linux kernel, the following vulnerability has been resolved: arp: do not assume dev_hard_header() does not change skb->head arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged. A recent commit broke this assumption. Initialize @arp pointer after dev_hard_header() call.

Analysis

Linux kernel ARP implementation incorrectly assumes that dev_hard_header() does not modify the SKB header structure, leading to potential denial of service when the function pointer is changed. A local user with standard privileges can trigger a system crash or hang by exploiting this unsafe memory assumption during ARP packet creation. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

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Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +28
POC: 0

Vendor Status

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CVE-2026-22988 vulnerability details – vuln.today
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