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.
History

Thu, 04 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-200

Thu, 04 Jun 2026 01:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Out-of-bounds read in morse.ko Vendor IE processing
First Time appeared Morsemicro
Morsemicro halow Link 2
CPEs cpe:2.3:o:morsemicro:halow_link_2:*:*:*:*:*:*:*:*
Vendors & Products Morsemicro
Morsemicro halow Link 2
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Bugcrowd

Published:

Updated: 2026-06-04T00:17:45.373Z

Reserved: 2026-05-04T05:03:13.154Z

Link: CVE-2026-7764

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-04T02:16:17.700

Modified: 2026-06-04T02:16:17.700

Link: CVE-2026-7764

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-04T02:30:03Z