CVE-2025-27465 Affecting xen-devel package, versions <4.20.1_02-150700.3.8.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.06% (19th percentile)

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  • Snyk IDSNYK-SLES157-XENDEVEL-10753683
  • published16 Jul 2025
  • disclosed15 Jul 2025

Introduced: 15 Jul 2025

CVE-2025-27465  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 xen-devel to version 4.20.1_02-150700.3.8.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen-devel package and not the xen-devel package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

Certain instructions need intercepting and emulating by Xen. In some cases Xen emulates the instruction by replaying it, using an executable stub. Some instructions may raise an exception, which is supposed to be handled gracefully. Certain replayed instructions have additional logic to set up and recover the changes to the arithmetic flags.

For replayed instructions where the flags recovery logic is used, the metadata for exception handling was incorrect, preventing Xen from handling the the exception gracefully, treating it as fatal instead.

CVSS Base Scores

version 3.1