CVE-2026-72246

Rejected vulnerability record

Published Aug 15, 2026 · Updated Aug 15, 2026

The Linux CNA rejected this identifier, so it no longer represents a confirmed vulnerability affecting Linux Kernel systems. The superseded record described Netfilter flowtable tunnel setup taking layer 2 encapsulation and layer 3 tunnel data from the opposite tuple direction. The current rejection supplies no replacement identifier or vulnerability impact, and Ubuntu marks its supported kernel packages not affected.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

The Linux CNA rejected this identifier, so it no longer represents a confirmed vulnerability affecting Linux Kernel systems. The superseded record described Netfilter flowtable tunnel setup taking layer 2 encapsulation and layer 3 tunnel data from the opposite tuple direction. The current rejection supplies no replacement identifier or vulnerability impact, and Ubuntu marks its supported kernel packages not affected.

The record

CVE
CVE-2026-72246
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

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

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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=0880c4ed122d0cddc9f29a2b28f055d1f24f0fca <392d033fd372268015bc5a54ba7c593ba44940d1
  2. Affected versionversion=7.2-rc3
  3. Affected versionversion=fa7395c02d95e51bad2952325d2d6503bfbad437 <90941d9c925d66a482c9121919ec3546a6988c16

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linux Kernelversion=0880c4ed122d0cddc9f29a2b28f055d1f24f0fca <392d033fd372268015bc5a54ba7c593ba44940d1; version=7.2-rc3; version=fa7395c02d95e51bad2952325d2d6503bfbad437 <90941d9c925d66a482c9121919ec3546a6988c16

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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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

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Your stack

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