Is CVE-2017-15306 in the CISA KEV catalog?

No. CVE-2017-15306 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-15306?

CVE-2017-15306 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2017-15306?

CVE-2017-15306 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-15306?

Upgrade linux on debian 11 to 4.13.13-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2017-15306

MEDIUM

5.5

CVSS v3

NVD

Description

The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linuxDebian

Fixed in:4.13.13-1CVE-2017-15306

linux-gcpUbuntu

Fixed in:4.13.0-1002.5USN-3507-2

linux-image-4.13.0-1002-gcpUbuntu

Fixed in:4.13.0-1002.5USN-3507-2

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

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Patch3

Third-Party Advisory1

securityfocus.com

Release Notes1

kernel.org

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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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 2026-05-13.