qemutpmemulatorpreparehost() · Libvirt: unsafe chown
Affects MicrosoftSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 7 Nov 2026, 12:47 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 5.5 |
|---|
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 7 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10libvirt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 6libvirt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 7libvirt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8virt:rhel/libvirt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9libvirt | Affected– | Fixed in– |
Description
A vulnerability in Libvirt's qemutpmemulatorpreparehost() function allows an unsafe chown operation that can be exploited via a symlink to change arbitrary file ownership. This issue is identified as CVE-2026-77159 and affects version 3.0 of the product. No CVSS score or detailed impact information is provided.