Is CVE-2013-4361 being actively exploited?

CVE-2013-4361 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-4361?

CVE-2013-4361 has a CVSS 2.0 base score of 2.1 (LOW).

CVE-2013-4361

LOW · CVSS 2.1EPSS 0.4%EU EUVD

The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.

Key facts

CVSS score: 2.1 (v2.0)
Severity: LOW
CVSS vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-200
EPSS score: 0.4% (34th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-4245)
Published: October 1, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-4245 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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