Is CVE-2015-7311 in the CISA KEV catalog?

No. CVE-2015-7311 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-7311?

CVE-2015-7311 has a CVSS v2 base score of 3.6 (LOW).

What is the EPSS score for CVE-2015-7311?

CVE-2015-7311 has an EPSS score of 0.42% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-7311?

Upgrade xen on debian 11 to 4.8.0~rc3-1 or later.

CVE & CISA-KEV Catalog

CVE-2015-7311

LOW

3.6

CVSS v2

NVD

Description

libxl in Xen 4.1.x through 4.6.x does not properly handle the readonly flag on disks when using the qemu-xen device model, which allows local guest users to write to a read-only disk image.

CWE-17

How to fix

Remediation Available

xenDebian

Fixed in:4.8.0~rc3-1CVE-2015-7311

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.42%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Vendor Advisory1

xenbits.xen.org

Other references9

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.