CVE-2013-1442

Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers.

Published: 2013-09-30 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-1442 is rated Low Risk (15.2/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.37%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-1442

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.11% 0.37% +0.26%
2 2025-03-30 1.16% 0.11% -1.05%
3 2025-03-29 — 1.16% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-1442

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
1.2 2.0 LOW
AV:L/AC:H/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 1.9 2.9 [email protected]

Weakness enumeration for CVE-2013-1442

OS Trackers for CVE-2013-1442

vendor priority summary link
debian not yet assigned CVE-2013-1442 not yet assigned priority: Debian including 1 source packages (xen), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-1442
gentoo high CVE-2013-1442: 1 GLSA(s) (201407-03), 3 atom(s) (app-emulations/xen, app-emulations/xen-pvgrub, app-emulations/xen-tools); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-1442
redhat medium — https://access.redhat.com/security/cve/CVE-2013-1442
ubuntu medium CVE-2013-1442 medium priority: Ubuntu including 2 source packages (xen, xen-3.3), 12 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): DNE 5, released 4, ignored 1, needed 1, not-affected 1. https://ubuntu.com/security/CVE-2013-1442

Affected software / configurations for CVE-2013-1442

Vendor Product Version Raw CPE
xen xen 4.0.0 cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
xen xen 4.0.1 cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*
xen xen 4.0.2 cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*
xen xen 4.0.3 cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*
xen xen 4.0.4 cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*
xen xen 4.1.0 cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
xen xen 4.1.1 cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
xen xen 4.1.2 cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
xen xen 4.1.3 cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*
xen xen 4.1.4 cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*
xen xen 4.1.5 cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*
xen xen 4.2.0 cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
xen xen 4.2.1 cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
xen xen 4.2.2 cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
xen xen 4.2.3 cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
xen xen 4.3.0 cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*

References for CVE-2013-1442

cvelogic Threat Intelligence