CVE-2026-46102Network attack vector

Remote memory exhaustion via unreleased partial messages

Published May 27, 2026 · Updated May 27, 2026

Memory leak in the Linux Kernel stream parser allows remote attackers to exhaust kernel memory via incomplete framed TCP messages. The strp_abort_strp() abort path retains strp->skb_head instead of freeing the partially assembled socket buffer after message assembly times out. No authentication or user interaction is required, but reachability requires a network service using an affected strparser-based framed protocol; repetition can cause system-wide OOM and interrupt service.

CVSS severity7.5
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux Kernel stream parser allows remote attackers to exhaust kernel memory via incomplete framed TCP messages. The strp_abort_strp() abort path retains strp->skb_head instead of freeing the partially assembled socket buffer after message assembly times out. No authentication or user interaction is required, but reachability requires a network service using an affected strparser-based framed protocol; repetition can cause system-wide OOM and interrupt service.

The record

CVE
CVE-2026-46102
Published
May 27, 2026
Updated
May 27, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-401, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <19ca9475f18f991735f98a22e735c43e95e6298d
  2. Affected versionversion=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <5327dad2ffe9c1b49881dd6d51ff3c6893847568
  3. Affected versionversion=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <56082f442023db9be1a5a29d4ee361de4017c0b7
  4. Affected versionversion=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <e9ae00490d474757c0f9c65073de83e6bb1e5a00
  5. Affected versionversion=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <fe72340daaf1af588be88056faf98965f39e6032
  6. Affected versionversion=4.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <19ca9475f18f991735f98a22e735c43e95e6298d; version=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <5327dad2ffe9c1b49881dd6d51ff3c6893847568; version=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <56082f442023db9be1a5a29d4ee361de4017c0b7; version=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <e9ae00490d474757c0f9c65073de83e6bb1e5a00; version=43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a <fe72340daaf1af588be88056faf98965f39e6032; version=4.9

Published CVSS scores

7.5kernel.orgCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499.004Application or System Exploitation Flood

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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