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VulnerabilityPublished Updated

CVE-2024-8178: FreeBSD · Use of Uninitialized Resource

Affects FreeBSDSource GCVE Database

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Not known to be exploited · CVSS 9.3 Critical.

Data as of 31 Oct 2026, 01:24 UTC

CVSS 3.1 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.19.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/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 30 Oct 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 interfaces and iSCSI target hosts to trusted entities only to reduce exposure.

Description

CVE-2024-8178 is a critical vulnerability in FreeBSD where the ctl_write_buffer and ctl_read_buffer functions allocate memory without initializing it. This flaw can be exploited by malicious software running in a guest VM exposing virtio_scsi to execute code on the host's bhyve userspace process, which runs with root privileges but within a Capsicum sandbox. Additionally, a malicious iSCSI initiator could achieve remote code execution on the iSCSI target host. The vulnerability affects FreeBSD versions 13.3-RELEASE, 14.0-RELEASE, and 14.1-RELEASE.

References

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