CVE-2026-72064Network attack vector

Network interruption via unsynchronized DMA receive buffers

Published Aug 15, 2026 · Updated Aug 15, 2026

Missing DMA synchronization in the Linux MANA driver in 6.18 allows remote attackers to interrupt network receive processing via packet traffic. The RX completion path leaves page-pool fragments DMA-mapped and passes packet data to the networking stack without the required CPU synchronization. Exposure requires fragmented page-pool RX buffers on a configuration that requires explicit DMA syncing, such as swiotlb=force; stale buffer data then breaks RX and can destabilize the system.

CVSS severity9.8
Critical
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing DMA synchronization in the Linux MANA driver in 6.18 allows remote attackers to interrupt network receive processing via packet traffic. The RX completion path leaves page-pool fragments DMA-mapped and passes packet data to the networking stack without the required CPU synchronization. Exposure requires fragmented page-pool RX buffers on a configuration that requires explicit DMA syncing, such as swiotlb=force; stale buffer data then breaks RX and can destabilize the system.

The record

CVE
CVE-2026-72064
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-820, T1498
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.18
  2. Affected versionversion=730ff06d3f5cc2ce0348414b78c10528b767d4a3 <bc650dd5ce6434286b96e2b26a41af81f679cc7c
  3. Affected versionversion=730ff06d3f5cc2ce0348414b78c10528b767d4a3 <c72a0f09c57f92113df69f9b902d11c9e4b132f5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.18; version=730ff06d3f5cc2ce0348414b78c10528b767d4a3 <bc650dd5ce6434286b96e2b26a41af81f679cc7c; version=730ff06d3f5cc2ce0348414b78c10528b767d4a3 <c72a0f09c57f92113df69f9b902d11c9e4b132f5

Published CVSS scores

9.8Linux CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-820Missing Synchronization
T1498Network Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo