EUVD-2026-9392

🗓️ 04 Mar 2026 12:30:29Reported by EUVDType

Xen skips indirect branch barrier when a vCPU returns to its previous CPU, weakening isolation.

Reporter	Title	Published	Views	Family All 64
ATTACKERKB	CVE-2026-23553	28 Jan 202615:33	–	attackerkb
ATTACKERKB	CVE-2026-2355	4 Mar 202611:22	–	attackerkb
AlpineLinux	CVE-2026-23553	28 Jan 202615:33	–	alpinelinux
Circl	CVE-2026-2355	4 Mar 202612:01	–	circl
Circl	CVE-2026-23553	27 Jan 202611:09	–	circl
CNNVD	Xen security vulnerabilities	28 Jan 202600:00	–	cnnvd
CNNVD	WordPress plugin My Calendar – Accessible Event Manager 跨站脚本漏洞	4 Mar 202600:00	–	cnnvd
Citrix	Security Bulletins for XenServer	21 Aug 202406:47	–	citrix
Citrix	XenServer Security Update for CVE-2025-58151 and CVE-2026-23553	27 Jan 202610:16	–	citrix
CVE	CVE-2026-2355	4 Mar 202611:22	–	cve

[
  {
    "enisaIdVendor": [
      {
        "id": "6f661675-2ca2-369d-a270-d44028ef3456",
        "vendor": {
          "name": "joedolson"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "af103973-4652-3096-b1f9-a520a9750258",
        "product": {
          "name": "My Calendar – Accessible Event Manager"
        },
        "product_version": "* ≤3.7.3"
      }
    ]
  }
]

Source	Link
wordfence	www.wordfence.com/threat-intel/vulnerabilities/id/03d5c82e-f82f-4156-bb3e-e6eb365a6c36
plugins	www.plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.2/my-calendar-shortcodes.php
plugins	www.plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.2/my-calendar-templates.php
plugins	www.plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-templates.php
plugins	www.plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-shortcodes.php
plugins	www.plugins.trac.wordpress.org/changeset
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-23553
xenbits	www.xenbits.xenproject.org/xsa/advisory-479.html
openwall	www.openwall.com/lists/oss-security/2026/01/27/3
xenbits	www.xenbits.xen.org/xsa/advisory-479.html

04 Mar 2026 12:30Current

5.9Medium risk

Vulners AI Score5.9

CVSS 3.16.4

EPSS0.00033

SSVC