CVE-2026-68461 — CVE & Security Advisory Radar

🎯 CVE-2026-68461 HIGH 7.8 🔥 EPSS 13% 🇪🇺 EUVD

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CVE-2026-68461 | In the Linux kernel, the following vulnerability has been resolved: device property: initialize the remaining fields of fwnode_handle in fwnode_init() If a firmware node is allocated on the stack (for instance: temporary software node whose life-time we control) or on the heap - but using a non-zeroing allocation function - and initialized using fwnode_init(), its secondary pointer will contain uninitialized memory which likely will be neither NULL nor IS_E

In the Linux kernel, the following vulnerability has been resolved:

device property: initialize the remaining fields of fwnode_handle in fwnode_init()

If a firmware node is allocated on the stack (for instance: temporary
software node whose life-time we control) or on the heap - but using a
non-zeroing allocation function - and initialized using fwnode_init(),
its secondary pointer will contain uninitialized memory which likely
will be neither NULL nor IS_ERR() and so may end up being dereferenced
(for example: in dev_to_swnode()). Set fwnode->secondary to NULL on
initialization. While at it: initialize the remaining fields of struct
fwnode_handle too just to be sure.

[ Fix typo in commit message. - Danilo ]

Klassifikation & Betroffenheit:

Linux Linux 01bb86b380a306bd937c96da36f66429f3362137 <7eba000621fff223dd7bab484d48918c7c77a307Linux 5.11Linux 01bb86b380a306bd937c96da36f66429f3362137 <173b61c9276c7b3a5fbcc63ae7aafc897fee1e18Linux 01bb86b380a306bd937c96da36f66429f3362137 <0198d579948322cda5178b9672d448375a32f947Linux patch: 7.2Linux 01bb86b380a306bd937c96da36f66429f3362137 <c8542b68ba6ef4f61072098893a3f5b71c569b6cLinux patch: 6.18.39Linux patch: 7.1.5

Improper Control of Generation of Code ('Code Injection') 🎯 Medium

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

🛡️ Empfohlene Mitigation: Refactor your program so that you do not have to dynamically generate code.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-35 · Leverage Executable Code in Non-Executab… (Very High) CAPEC-77 · Manipulating User-Controlled Variables (Very High) CAPEC-242 · Code Injection (High)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1027.006 · Obfuscated Files or Information: H… T1027.009 · Obfuscated Files or Information: E… T1564.009 · Hide Artifacts: Resource Forking

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2026-74573 9.3 CVE-2026-74568 9.3 CVE-2026-74517 9.3 CVE-2026-74439 9.3 CVE-2026-74310 9.3

🩹 Patch verfügbar (OSV):

🩹 Kernel ≥ 5.15.212 🩹 Kernel ≥ 6.1.178 🩹 Kernel ≥ 6.6.145 🩹 Kernel ≥ 6.12.96 🩹 Kernel ≥ 6.18.39 🩹 Kernel ≥ 7.1.5

📰 Eigene Berichterstattung: ➔ CVE-2026-68461 | Linux Kernel up to 7.1.4 Device Property fwnode_init uninitiali

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2026

Veröffentlicht 08/2026

Heute 03.09.

CVSS-Vektor-Analyse: 7.8

AV · Angriffsvektor Lokal

AC · Komplexität Gering

PR · Privilegien Gering

UI · Interaktion Keine

S · Scope Unverändert

C · Vertraulichkeit Hoch

I · Integrität Hoch

A · Verfügbarkeit Hoch

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Veröffentlicht:15.08.2026

Aktualisiert:17.08.2026 05:39

Assigner (CNA):Linux

EUVD-ID:EUVD-2026-59083

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

Tier	2026-08-29	2026-09-02
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

7.8 HIGH

🇪🇺 EUVD

EPSS

13%

CVE-2026-68461 💻 Lokal 🔑 Geringe Nutzerrechte nötig

Linux

CVE-2026-68461 | In the Linux kernel, the following vulnerability has been resolved: device property: initialize the remaining fields of fwnode_handle in fwnode_init() If a firmware node is allocated on the stack (for instance: temporary software node whose life-time we control) or on the heap - but using a non-zeroing allocation function - and initialized using fwnode_init(), its secondary pointer will contain uninitialized memory which likely will be neither NULL nor IS_E

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

15.08.2026

🛡️ Details ➔

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