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Vulnerabilities

CVE-2025-58142 | BDVDB-2026-293449 Detail

XenXen

Description#

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of guest memory pages in the viridian code: 1. A NULL pointer dereference in the updating of the reference TSC area. This is CVE-2025-27466. 2. A NULL pointer dereference by assuming the SIM page is mapped when a synthetic timer message has to be delivered. This is CVE-2025-58142. 3. A race in the mapping of the reference TSC page, where a guest can get Xen to free a page while still present in the guest physical to machine (p2m) page tables. This is CVE-2025-58143.

Impact#

Denial of Service (DoS) affecting the entire host, information leaks, or elevation of privilege.

Weaknesses#

  • CWE-395 Use of NullPointerException Catch to Detect NULL Pointer Dereference

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.
  2. Version 2Most recent update recorded in the CVE List.