Is CVE-2016-2547 in the CISA KEV catalog?

No. CVE-2016-2547 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-2547?

CVE-2016-2547 has a CVSS v3 base score of 5.1 (MEDIUM).

What is the EPSS score for CVE-2016-2547?

CVE-2016-2547 has an EPSS score of 0.34% (26th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-2547?

Upgrade linux on debian 11 to 4.4.2-1 or later. Fixes are available for 34 affected products.

CVE & CISA-KEV Catalog

CVE-2016-2547

MEDIUM

5.1

CVSS v3

NVD

Description

sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.

CWE-362Race Condition

How to fix

Remediation Available

linuxDebian

Fixed in:4.4.2-1CVE-2016-2547

linuxUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-genericUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-generic-lpaeUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-lowlatencyUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-powerpc-e500Ubuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-powerpc-e500mcUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-powerpc-smpUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-powerpc64-embUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.13.0-83-powerpc64-smpUbuntu

Fixed in:3.13.0-83.127USN-2929-1

linux-image-3.16.0-67-genericUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-image-3.16.0-67-generic-lpaeUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-image-3.16.0-67-lowlatencyUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-image-3.16.0-67-powerpc-e500mcUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-image-3.16.0-67-powerpc-smpUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-image-3.16.0-67-powerpc64-embUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-image-3.16.0-67-powerpc64-smpUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-image-3.19.0-56-genericUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-image-3.19.0-56-generic-lpaeUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-image-3.19.0-56-lowlatencyUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-image-3.19.0-56-powerpc-e500mcUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-image-3.19.0-56-powerpc-smpUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-image-3.19.0-56-powerpc64-embUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-image-3.19.0-56-powerpc64-smpUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-image-4.2.0-34-genericUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

linux-image-4.2.0-34-generic-lpaeUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

linux-image-4.2.0-34-lowlatencyUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

linux-image-4.2.0-34-powerpc-e500mcUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

linux-image-4.2.0-34-powerpc-smpUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

linux-image-4.2.0-34-powerpc64-embUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

linux-image-4.2.0-34-powerpc64-smpUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

linux-lts-utopicUbuntu

Fixed in:3.16.0-67.87~14.04.1USN-2931-1

linux-lts-vividUbuntu

Fixed in:3.19.0-56.62~14.04.1USN-2932-1

linux-lts-wilyUbuntu

Fixed in:4.2.0-34.39~14.04.1USN-2930-2

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.34%probability of exploitation in 30 days

26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

Related Vulnerabilities

Other CWE-362 (Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-6387	High	8.1	100%	-	Fix
CVE-2023-36884	High	7.5	99%	KEV + Ransom	Fix
CVE-2018-15473	Medium	5.3	99%	-	Fix
CVE-2024-27983	High	8.2	87%	-	Fix
CVE-2014-0226	Medium	6.8	86%	-	Fix
CVE-2016-5195	High	7.0	84%	KEV	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 2026-05-06.