https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T23:23:02.433479+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bdu:2022-01697 bdu:2022-01697 2026-10-04T23:23:02.684472+00:00 bdu:2022-01697 https://cve.radiocsirt.org/vuln/certfr-2021-avi-687 certfr-2021-avi-687 — Une vulnérabilité a été découverte dans Xen. Elle permet à un attaquant de provoquer un déni de service, une atteinte à… 2026-10-04T23:23:02.684514+00:00 certfr-2021-avi-687 https://cve.radiocsirt.org/vuln/euvd-2026-26075 EUVD-2026-26075 2026-10-04T23:23:02.684533+00:00 EUVD-2026-26075 https://cve.radiocsirt.org/vuln/fkie_cve-2021-28701 fkie_cve-2021-28701 2026-10-04T23:23:02.684545+00:00

Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.

 https://cve.radiocsirt.org/vuln/ghsa-423x-f92f-r5fm GHSA-423x-f92f-r5fm 2026-10-04T23:23:02.684575+00:00

Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.

 https://cve.radiocsirt.org/vuln/gsd-2021-28701 gsd-2021-28701 2026-10-04T23:23:02.684593+00:00 gsd-2021-28701 https://cve.radiocsirt.org/vuln/opensuse-su-2021:1301-1 openSUSE-SU-2021:1301-1 — Security update for xen 2026-10-04T23:23:02.684604+00:00

Security update for xen

 https://cve.radiocsirt.org/vuln/suse-su-2021:14848-1 SUSE-SU-2021:14848-1 — Security update for xen 2026-10-04T23:23:02.684622+00:00

Security update for xen

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2021-28701 UBUNTU-CVE-2021-28701 2026-10-04T23:23:02.684645+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

Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.