Is CVE-2016-4581 in the CISA KEV catalog?

No. CVE-2016-4581 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-4581?

CVE-2016-4581 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2016-4581?

CVE-2016-4581 has an EPSS score of 0.56% (42th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-4581?

Upgrade linux on debian 11 to 4.5.4-1 or later. Fixes are available for 44 affected products.

CVE & CISA-KEV Catalog

CVE-2016-4581

MEDIUM

5.5

CVSS v3

NVD

Description

fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.

How to fix

Remediation Available

linuxDebian

Fixed in:4.5.4-1CVE-2016-4581

linuxUbuntu

Fixed in:3.13.0-87.133USN-2989-1

Fixed in:4.4.0-24.43USN-3006-1

linux-image-3.13.0-87-genericUbuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.13.0-87-generic-lpaeUbuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.13.0-87-lowlatencyUbuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.13.0-87-powerpc-e500Ubuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.13.0-87-powerpc-e500mcUbuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.13.0-87-powerpc-smpUbuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.13.0-87-powerpc64-embUbuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.13.0-87-powerpc64-smpUbuntu

Fixed in:3.13.0-87.133USN-2989-1

linux-image-3.16.0-73-genericUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-image-3.16.0-73-generic-lpaeUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-image-3.16.0-73-lowlatencyUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-image-3.16.0-73-powerpc-e500mcUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-image-3.16.0-73-powerpc-smpUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-image-3.16.0-73-powerpc64-embUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-image-3.16.0-73-powerpc64-smpUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-image-3.19.0-61-genericUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-image-3.19.0-61-generic-lpaeUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-image-3.19.0-61-lowlatencyUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-image-3.19.0-61-powerpc-e500mcUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-image-3.19.0-61-powerpc-smpUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-image-3.19.0-61-powerpc64-embUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-image-3.19.0-61-powerpc64-smpUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-image-4.2.0-38-genericUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-image-4.2.0-38-generic-lpaeUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-image-4.2.0-38-lowlatencyUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-image-4.2.0-38-powerpc-e500mcUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-image-4.2.0-38-powerpc-smpUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-image-4.2.0-38-powerpc64-embUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-image-4.2.0-38-powerpc64-smpUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-image-4.4.0-1012-raspi2Ubuntu

Fixed in:4.4.0-1012.16USN-3007-1

linux-image-4.4.0-24-genericUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

Fixed in:4.4.0-24.43USN-3006-1

linux-image-4.4.0-24-generic-lpaeUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

Fixed in:4.4.0-24.43USN-3006-1

linux-image-4.4.0-24-lowlatencyUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

Fixed in:4.4.0-24.43USN-3006-1

linux-image-4.4.0-24-powerpc-e500mcUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

Fixed in:4.4.0-24.43USN-3006-1

linux-image-4.4.0-24-powerpc-smpUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

Fixed in:4.4.0-24.43USN-3006-1

linux-image-4.4.0-24-powerpc64-embUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

Fixed in:4.4.0-24.43USN-3006-1

linux-image-4.4.0-24-powerpc64-smpUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

Fixed in:4.4.0-24.43USN-3006-1

linux-lts-utopicUbuntu

Fixed in:3.16.0-73.95~14.04.1USN-3000-1

linux-lts-vividUbuntu

Fixed in:3.19.0-61.69~14.04.1USN-3001-1

linux-lts-wilyUbuntu

Fixed in:4.2.0-38.45~14.04.1USN-3002-1

linux-lts-xenialUbuntu

Fixed in:4.4.0-24.43~14.04.1USN-3005-1

linux-raspi2Ubuntu

Fixed in:4.4.0-1012.16USN-3007-1

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

0.56%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Vendor Advisory1

github.com

Third-Party Advisory12

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.