CVE-2026-7764: An out-of-bounds read vulnerability in the morse.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 softw

Q: How do I fix CVE-2026-7764?

halowlink 2 firmware: upgrade to 2.11.12. Exact commands for each OS are on this page.

Q: Is CVE-2026-7764 being exploited?

CVE-2026-7764 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-7764 affect?

CVE-2026-7764 affects halowlink 2 firmware. Severity is medium (CVSS 6.8). 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 memo

Q: How urgent is CVE-2026-7764?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 6.8UPGRADE

CVE-2026-7764 is a medium-severity flaw (CVSS 6.8) affecting halowlink 2 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 v

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-125
Published	2026-06-04
Last modified	2026-07-22

Publisher (CNA): Bugcrowd Inc. · Vendor: morsemicro

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-04 02:16 UTCPublished CVE record published
2026-07-22 20:10 UTCUpdated Record last modified

morsemicro halowlink 2 firmware UPGRADE

Affected: < 2.11.12

Fixed in: 2.11.12

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-7764?

halowlink 2 firmware: upgrade to 2.11.12. Exact commands for each OS are on this page.

Is CVE-2026-7764 being exploited?

CVE-2026-7764 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-7764 affect?

CVE-2026-7764 affects halowlink 2 firmware. Severity is medium (CVSS 6.8). 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 memo

How urgent is CVE-2026-7764?

Priority 24/100. No elevated risk signals yet.

Software pages

Wi-Fi vulnerabilities

References

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