The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade SLES:15.7
xen-tools-domU
to version 4.20.1_04-150700.3.11.1 or higher.
Note: Versions mentioned in the description apply only to the upstream xen-tools-domU
package and not the xen-tools-domU
package as distributed by SLES
.
See How to fix?
for SLES:15.7
relevant fixed versions and status.
[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:
A NULL pointer dereference in the updating of the reference TSC area. This is CVE-2025-27466.
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.
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.