CVE-2023-54286 — CVE & Security Advisory Radar

🎯 CVE-2023-54286 HIGH 7.6 🔥 EPSS 26% 🇪🇺 EUVD

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CVE-2023-54286 | In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace A received TKIP key may be up to 32 bytes because it may contain MIC rx/tx keys too. These are not used by iwl and copying these over overflows the iwl_keyinfo.key field. Add a check to not copy more data to iwl_keyinfo.key then will fit. This fixes backtraces like this one: memcpy: detected field-spanning write (si

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

wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace

A received TKIP key may be up to 32 bytes because it may contain
MIC rx/tx keys too. These are not used by iwl and copying these
over overflows the iwl_keyinfo.key field.

Add a check to not copy more data to iwl_keyinfo.key then will fit.

This fixes backtraces like this one:

memcpy: detected field-spanning write (size 32) of single field "sta_cmd.key.key" at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 (size 16)
WARNING: CPU: 1 PID: 946 at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 iwlagn_send_sta_key+0x375/0x390 [iwldvm]

Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017
RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm]

Call Trace:

iwl_set_dynamic_key+0x1f0/0x220 [iwldvm]
iwlagn_mac_set_key+0x1e4/0x280 [iwldvm]
drv_set_key+0xa4/0x1b0 [mac80211]
ieee80211_key_enable_hw_accel+0xa8/0x2d0 [mac80211]
ieee80211_key_replace+0x22d/0x8e0 [mac80211]

Klassifikation & Betroffenheit:

Linux Linux patch: 4.14.316Linux patch: 6.3.4Linux patch: 5.15.113Linux 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 <3ed3c1c2fc3482b72e755820261779cd2e2c5a3eLinux patch: 6.4Linux 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 <87940e4030e4705e1f3fd2bbb1854eae8308314bLinux 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 <ef16799640865f937719f0771c93be5dca18adc6Linux patch: 6.1.30

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-2026-74521 9.1 CVE-2026-74476 9.1 CVE-2026-74287 9.1 CVE-2026-72348 9.1 CVE-2026-72320 9.1

🩹 Patch verfügbar (OSV):

🩹 Kernel ≥ 4.14.316 🩹 Kernel ≥ 4.19.284 🩹 Kernel ≥ 5.4.244 🩹 Kernel ≥ 5.10.181 🩹 Kernel ≥ 5.15.113 🩹 Kernel ≥ 6.1.30

📚 Referenzen & Quellen:

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

Ausnutzungs-Zeitleiste:

Reserviert 2023

Veröffentlicht 12/2025

Heute 31.08.

CVSS-Vektor-Analyse: 7.6

AV · Angriffsvektor Benachbart

AC · Komplexität Gering

PR · Privilegien Keine

UI · Interaktion Keine

S · Scope Unverändert

C · Vertraulichkeit Gering

I · Integrität Gering

A · Verfügbarkeit Hoch

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

Veröffentlicht:30.12.2025

Aktualisiert:04.08.2026 11:16

Assigner (CNA):Linux

EUVD-ID:EUVD-2023-60518

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

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	2026-08-31
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

7.6 HIGH

🇪🇺 EUVD

EPSS

26%

CVE-2023-54286 🌐 Adjacent Network 🔓 Keine Authentifizierung nötig

Linux

CVE-2023-54286 | In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace A received TKIP key may be up to 32 bytes because it may contain MIC rx/tx keys too. These are not used by iwl and copying these over overflows the iwl_keyinfo.key field. Add a check to not copy more data to iwl_keyinfo.key then will fit. This fixes backtraces like this one: memcpy: detected field-spanning write (si

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

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

30.12.2025

🛡️ Details ➔

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