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The vulnerability of the hvm_serial component in the Role-Based Access Control (RBAC) access management subsystem of the XCP-ng hypervisor and the XenServer server virtualization platform allows a perpetrator to gain write access to arbitrary files.
🗓️ 20 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 2 Views
| Reporter | Title | Published | Views | Family All 5 |
|---|---|---|---|---|
 | CVE-2026-42486 | 28 Apr 202618:38 | – | circl |
 | Security Bulletins for XenServer | 21 Aug 202406:47 | – | citrix |
 | CVE-2026-42486 | 28 Apr 202618:05 | – | cve |
 | SUSE CVE-2026-42486 | 30 Apr 202602:24 | – | susecve |
 | Multiple RBAC issues in XAPI | 28 Apr 202618:05 | – | xen |
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20 May 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 27.5
CVSS 38.5