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VulnerabilityPublished Updated

CVE-2024-43110: The ctl_request_sense function could expose up to three bytes of the kernel heap to userspace

Source GCVE Database

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Authoritative record:CVE-2024-43110· High 8.4

Not known to be exploited · CVSS 8.4 High.

Data as of 3 Nov 2026, 17:26 UTC

CVSS 3.1 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.18.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Sep 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Freebsdfreebsd/freebsdpkg:deb/freebsd/freebsdOther threatsAffected
  • =13.3-RELEASE
  • =14.0-RELEASE
  • =14.1-RELEASE
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, restrict access to virtio_scsi devices from untrusted guest VMs and limit exposure of iSCSI target services to untrusted networks.

Description

CVE-2024-43110 is a vulnerability in the ctl_request_sense function that can expose up to three bytes of kernel heap memory to userspace. This flaw allows malicious software running inside a guest virtual machine with access to virtio_scsi to potentially execute code on the host system within the bhyve userspace process, which usually runs with root privileges. The bhyve process operates within a Capsicum sandbox, limiting the capabilities of any malicious code. Additionally, a malicious iSCSI initiator could exploit this vulnerability to achieve remote code execution on an iSCSI target host.

References

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