Fedora: Security Advisory (FEDORA-2026-e39149a8a0)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Security update for xen

This update for xen fixes the following issues: Security fixes: CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing XSA-477 bsc1256745 CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation XSA-479 bsc1256747 CVE-2025-58149: Fixed incorrect removal od permissions on PCI device...

CVE-2026-23553

creationtimestamp| type| source ---|---|--- 2026-01-27 11:09:36+00:00| seen| https://seclists.org/oss-sec/2026/q1/119 2026-01-27 12:47:17+00:00| seen| https://bsky.app/profile/infosec.skyfleet.blue/post/3mdfs4zyrt42w 2026-01-27 15:20:07+00:00| seen|...

Linux Distros Unpatched Vulnerability : CVE-2026-23553

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's...