Is CVE-2006-5331 in the CISA KEV catalog?

No. CVE-2006-5331 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-5331?

CVE-2006-5331 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2006-5331?

CVE-2006-5331 has an EPSS score of 0.43% (35th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2006-5331?

Upgrade linux kernel to 2.6.19 or later.

CVE & CISA-KEV Catalog

CVE-2006-5331

MEDIUM

5.5

CVSS v3

NVD

Description

The altivec_unavailable_exception function in arch/powerpc/kernel/traps.c in the Linux kernel before 2.6.19 on 64-bit systems mishandles the case where CONFIG_ALTIVEC is defined and the CPU actually supports Altivec, but the Altivec support was not detected by the kernel, which allows local users to cause a denial of service (panic) by triggering execution of an Altivec instruction.

CWE-19

How to fix

Remediation Available

linux kernelNVD

Affected:< 2.6.19Fixed in:2.6.19CVE-2006-5331derived from NVD

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

0.43%probability of exploitation in 30 days

35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Patch4

Related Vulnerabilities

Other CWE-19 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-5477	High	7.8	91%	-	Fix
CVE-2014-9034	Medium	5.0	83%	-	Fix
CVE-2016-4977	High	8.8	79%	-	-
CVE-2016-3236	Critical	9.8	78%	-	-
CVE-2014-7141	Medium	6.4	76%	-	Fix
CVE-2015-5374	High	7.8	74%	-	-

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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.