CVE-2026-7764

An out-of-bounds read vulnerability in the morse.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.12 allows an unauthenticated attacker within radio range to disclose a small amount of kernel heap memory or cause a Denial of Service (kernel oops/panic) via a crafted 802.11ah beacon or probe response frame containing a malformed Vendor Information Element. The function morse_vendor_find_vendor_ie() does not validate the IE length against the expected structure size before its result is passed to morse_vendor_rx_caps_ops_ie() and morse_vendor_fill_sta_vendor_info(), which read at fixed offsets into the IE data. Because the length check only requires the IE to be longer than 3 bytes, an attacker can supply an undersized IE, causing a heap out-of-bounds read of up to 9 bytes. No authentication, association, or user interaction is required.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.morsemicro.com/security-advisories/MM-SA-2026-003	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:morsemicro:halowlink_2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:morsemicro:halowlink_2:-:*:*:*:*:*:*:*

History

30 Jun 2026, 19:00

Type	Values Removed	Values Added
References	~~() https://www.morsemicro.com/security-advisories/MM-SA-2026-003 -~~	() https://www.morsemicro.com/security-advisories/MM-SA-2026-003 - Vendor Advisory
First Time		Morsemicro Morsemicro halowlink 2 Firmware Morsemicro halowlink 2
CWE		CWE-125
CPE		cpe:2.3:h:morsemicro:halowlink_2:-:::::::* cpe:2.3:o:morsemicro:halowlink_2_firmware::::::::

04 Jun 2026, 14:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.8

04 Jun 2026, 02:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-04 02:16

Updated : 2026-06-30 19:00

NVD link : CVE-2026-7764

Mitre link : CVE-2026-7764

CVE.ORG link : CVE-2026-7764

JSON object : View

Products Affected

morsemicro

halowlink_2
halowlink_2_firmware

CWE

CWE-125

Out-of-bounds Read

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