CVE-2026-97618Public exploit

Receive-data corruption via overconsumed buffer rings

Published Sep 25, 2026 · Updated Sep 25, 2026

Improper buffer consumption in the Linux io_uring receive path allows attackers to corrupt subsequent receive data using an oversized packet. The path advances an incremental provided-buffer ring by the full MSG_TRUNC result instead of the smaller region actually filled. Exposure requires recv or recvmsg with MSG_TRUNC and incremental provided buffers; affected receives can skip unwritten regions and discard later packet bytes.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper buffer consumption in the Linux io_uring receive path allows attackers to corrupt subsequent receive data using an oversized packet. The path advances an incremental provided-buffer ring by the full MSG_TRUNC result instead of the smaller region actually filled. Exposure requires recv or recvmsg with MSG_TRUNC and incremental provided buffers; affected receives can skip unwritten regions and discard later packet bytes.

The record

CVE
CVE-2026-97618
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=6.12
  2. Affected versionversion=ae98dbf43d755b4e111fcd086e53939bef3e9a1a <2e70ea75c7bb38a6dc212975f887310f14f7c043
  3. Affected versionversion=ae98dbf43d755b4e111fcd086e53939bef3e9a1a <6028b543884f8735e057ec9eea4908cd61cab230
  4. Affected versionversion=ae98dbf43d755b4e111fcd086e53939bef3e9a1a <927d96f91c582b319d104ecf50ec935a8dc29193

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.12; version=ae98dbf43d755b4e111fcd086e53939bef3e9a1a <2e70ea75c7bb38a6dc212975f887310f14f7c043; version=ae98dbf43d755b4e111fcd086e53939bef3e9a1a <6028b543884f8735e057ec9eea4908cd61cab230; version=ae98dbf43d755b4e111fcd086e53939bef3e9a1a <927d96f91c582b319d104ecf50ec935a8dc29193

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

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

Technologies

Your stack

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Your stack

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