Vulnary
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Critical· 9.8official fix available

CVE-2026-7763

A critical buffer overflow vulnerability in Morse Micro HaLowLink 2's kernel driver allows attackers to trigger system crashes or execute code via malicious Wi-Fi beacon frames. The flaw occurs when the driver fails to validate data length in beacon frames, enabling remote exploitation without authentication.

publishedJun 5, 2026
last modifiedJul 23, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
42th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Aug 23, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Users of Morse Micro HaLowLink 2 software versions prior to 2.11.13

02

Real-world impact

Unauthenticated attackers within Wi-Fi range could disrupt services or compromise systems via crafted beacon frames.

03

Why this severity

CVSS 9.8 (critical): High risk of system crashes or remote code execution with no user interaction required.

04

What to do about it

official fix available
recommended steps
  1. 01Check current HaLowLink 2 software version.
  2. 02Upgrade to version 2.11.13 or later if vulnerable.

NVD description

05

Timeline

  1. Jun 5, 2026 · Jun 5, 2026
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 23, 2026 · 12d ago
    Advisory updated
    The NVD record was last revised.
  3. Jul 24, 2026 · 11d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →