CVE-2024-36288

Kernel crash via unterminated SUNRPC page-array walk

Published Jun 21, 2024 · Updated Aug 5, 2026

Out-of-bounds access in Linux 6.8.12 through 6.8.x and 6.9.3 allows local users to crash the kernel during SUNRPC GSS cleanup. gss_free_in_token_pages walks in_token->pages until a null entry even though the allocated array has no null terminator, causing access beyond its bounds. Triggering requires low-privileged local access and execution of the SUNRPC GSS proxy token-cleanup path; no disclosure or modification impact is reported.

CVSS severity5.5
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in Linux 6.8.12 through 6.8.x and 6.9.3 allows local users to crash the kernel during SUNRPC GSS cleanup. gss_free_in_token_pages walks in_token->pages until a null entry even though the allocated array has no null terminator, causing access beyond its bounds. Triggering requires low-privileged local access and execution of the SUNRPC GSS proxy token-cleanup path; no disclosure or modification impact is reported.

The record

CVE
CVE-2024-36288
Published
Jun 21, 2024
Updated
Aug 5, 2026
Vendor
Siemens
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classifications
CWE-835, CWE-119, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=0 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=4420b73c7f26fd5fcb37bbce5313dd356ef1b3ca <6ed45d20d30005bed94c8c527ce51d5ad8121018; version=6.8.12 <6.9; version=6.9.3 <6.9.4; version=8ca148915670a2921afcc255af9e1dc80f37b052 <0a1cb0c6102bb4fd310243588d39461da49497ad; version=a3c1afd5d7ad59e34a275d80c428952f83c8c1f0; version=ab8466d4e26806a4ae82c282762c4545eecf45ef <57ff6c0a175930856213b2aa39f8c845a53e5b1c; version=bafa6b4d95d97877baa61883ff90f7e374427fae <4a77c3dead97339478c7422eb07bf4bf63577008; version=c1d8c429e4d2ce85ec5c92cf71cb419baf75c56f <af628d43a822b78ad8d4a58d8259f8bf8bc71115; version=f148a95f68c66c1b097391b68e153d5a46f0e780 <4cefcd0af7458bdeff56a9d8dfc6868ce23d128a; version=fe0b474974fee7af1df286e0edd5a1460c811865 <b4878ea99f2b40ef1925720b1b4ca7f4af1ba785
Siemens · SCALANCE XCM/XRM/XCH/XRH-300 familyversion=0 <V3.1
Siemens · RUGGEDCOM RST2428Pversion=0 <V3.1

Published CVSS scores

5.5Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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