https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-05T06:59:10.904975+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bdu:2023-08294 bdu:2023-08294 2026-10-05T06:59:11.129694+00:00 bdu:2023-08294 https://cve.radiocsirt.org/vuln/certfr-2023-avi-0938 certfr-2023-avi-0938 — De multiples vulnérabilités ont été découvertes dans<span class="textit"> Xen</span>. Elles permettent à un attaquant d… 2026-10-05T06:59:11.129733+00:00 certfr-2023-avi-0938 https://cve.radiocsirt.org/vuln/euvd-2026-259891 EUVD-2026-259891 2026-10-05T06:59:11.129753+00:00 EUVD-2026-259891 https://cve.radiocsirt.org/vuln/fkie_cve-2023-46835 fkie_cve-2023-46835 2026-10-05T06:59:11.129765+00:00

The current setup of the quarantine page tables assumes that the quarantine domain (dom_io) has been initialized with an address width of DEFAULT_DOMAIN_ADDRESS_WIDTH (48) and hence 4 page table levels.

However dom_io being a PV domain gets the AMD-Vi IOMMU page tables levels based on the maximum (hot pluggable) RAM address, and hence on systems with no RAM above the 512GB mark only 3 page-table levels are configured in the IOMMU.

On systems without RAM above the 512GB boundary amd_iommu_quarantine_init() will setup page tables for the scratch page with 4 levels, while the IOMMU will be configured to use 3 levels only, resulting in the last page table directory (PDE) effectively becoming a page table entry (PTE), and hence a device in quarantine mode gaining write access to the page destined to be a PDE.

Due to this page table level mismatch, the sink page the device gets read/write access to is no longer cleared between device assignment, possibly leading to data leaks.

 https://cve.radiocsirt.org/vuln/ghsa-c2mm-wq7p-rpm8 GHSA-c2mm-wq7p-rpm8 2026-10-05T06:59:11.129802+00:00

The current setup of the quarantine page tables assumes that the quarantine domain (dom_io) has been initialized with an address width of DEFAULT_DOMAIN_ADDRESS_WIDTH (48) and hence 4 page table levels.

However dom_io being a PV domain gets the AMD-Vi IOMMU page tables levels based on the maximum (hot pluggable) RAM address, and hence on systems with no RAM above the 512GB mark only 3 page-table levels are configured in the IOMMU.

On systems without RAM above the 512GB boundary amd_iommu_quarantine_init() will setup page tables for the scratch page with 4 levels, while the IOMMU will be configured to use 3 levels only, resulting in the last page table directory (PDE) effectively becoming a page table entry (PTE), and hence a device in quarantine mode gaining write access to the page destined to be a PDE.

Due to this page table level mismatch, the sink page the device gets read/write access to is no longer cleared between device assignment, possibly leading to data leaks.

 https://cve.radiocsirt.org/vuln/gsd-2023-46835 gsd-2023-46835 2026-10-05T06:59:11.129825+00:00 gsd-2023-46835 https://cve.radiocsirt.org/vuln/opensuse-su-2024:13442-1 openSUSE-SU-2024:13442-1 — xen-4.18.0_02-1.1 on GA media 2026-10-05T06:59:11.129836+00:00

xen-4.18.0_02-1.1 on GA media

 https://cve.radiocsirt.org/vuln/suse-su-2023:4466-1 SUSE-SU-2023:4466-1 — Security update for xen 2026-10-05T06:59:11.129857+00:00

Security update for xen

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2023-46835 UBUNTU-CVE-2023-46835 2026-10-05T06:59:11.129872+00:00

Affected: Ubuntu:16.04:LTS: xen, Ubuntu:18.04:LTS: xen, Ubuntu:20.04:LTS: xen, Ubuntu:22.04:LTS: xen, Ubuntu:24.04:LTS: xen, Ubuntu:25.10: xen, Ubuntu:26.04:LTS: xen

The current setup of the quarantine page tables assumes that the quarantine domain (dom_io) has been initialized with an address width of DEFAULT_DOMAIN_ADDRESS_WIDTH (48) and hence 4 page table levels. However dom_io being a PV domain gets the AMD-Vi IOMMU page tables levels based on the maximum (hot pluggable) RAM address, and hence on systems with no RAM above the 512GB mark only 3 page-table levels are configured in the IOMMU. On systems without RAM above the 512GB boundary amd_iommu_quarantine_init() will setup page tables for the scratch page with 4 levels, while the IOMMU will be configured to use 3 levels only, resulting in the last page table directory (PDE) effectively becoming a page table entry (PTE), and hence a device in quarantine mode gaining write access to the page destined to be a PDE. Due to this page table level mismatch, the sink page the device gets read/write access to is no longer cleared between device assignment, possibly leading to data leaks.

 https://cve.radiocsirt.org/vuln/wid-sec-w-2023-2900 WID-SEC-W-2023-2900 — Xen: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen 2026-10-05T06:59:11.129906+00:00

Ein lokaler Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um Informationen offenzulegen.