Is CVE-2025-37996 in the CISA KEV catalog?

No. CVE-2025-37996 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-37996?

CVE-2025-37996 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2025-37996?

CVE-2025-37996 has an EPSS score of 0.13% (3th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-37996?

Upgrade linux-aws-6.14 on ubuntu 24.04 to 6.14.0-1011.11~24.04.1 or later. Fixes are available for 35 affected products.

CVE & CISA-KEV Catalog

CVE-2025-37996

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix uninitialized memcache pointer in user_mem_abort() Commit fce886a60207 ("KVM: arm64: Plumb the pKVM MMU in KVM") made the initialization of the local memcache variable in user_mem_abort() conditional, leaving a codepath where it is used uninitialized via kvm_pgtable_stage2_map(). This can fail on any path that requires a stage-2 allocation without transition via a permission fault or dirty logging. Fix this by making sure that memcache is always valid.

CWE-908

How to fix

Remediation Available

linux-aws-6.14Ubuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-gcp-6.14Ubuntu

Fixed in:6.14.0-1014.15~24.04.1USN-7699-1

linux-hwe-6.14Ubuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-6.14.0-1010-oemUbuntu

Fixed in:6.14.0-1010.10USN-7699-2

linux-image-6.14.0-1011-awsUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-6.14.0-1011-aws-64kUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-6.14.0-1011-oracleUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-6.14.0-1011-oracle-64kUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-6.14.0-1014-gcpUbuntu

Fixed in:6.14.0-1014.15~24.04.1USN-7699-1

linux-image-6.14.0-1014-gcp-64kUbuntu

Fixed in:6.14.0-1014.15~24.04.1USN-7699-1

linux-image-6.14.0-28-genericUbuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-6.14.0-28-generic-64kUbuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-awsUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-aws-6.14Ubuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-aws-64kUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-aws-64k-6.14Ubuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-gcpUbuntu

Fixed in:6.14.0-1014.15~24.04.1USN-7699-1

linux-image-gcp-6.14Ubuntu

Fixed in:6.14.0-1014.15~24.04.1USN-7699-1

linux-image-gcp-64kUbuntu

Fixed in:6.14.0-1014.15~24.04.1USN-7699-1

linux-image-gcp-64k-6.14Ubuntu

Fixed in:6.14.0-1014.15~24.04.1USN-7699-1

linux-image-generic-6.14Ubuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-generic-64k-6.14Ubuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-oem-24.04aUbuntu

Fixed in:6.14.0-1010.10USN-7699-2

linux-image-oem-24.04cUbuntu

Fixed in:6.14.0-1010.10USN-7699-2

linux-image-oem-6.14Ubuntu

Fixed in:6.14.0-1010.10USN-7699-2

linux-image-oracleUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-oracle-6.14Ubuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-oracle-64kUbuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-oracle-64k-6.14Ubuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

linux-image-virtual-6.14Ubuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.14.0-28.28~24.04.1USN-7699-2

linux-oem-6.14Ubuntu

Fixed in:6.14.0-1010.10USN-7699-2

linux-oracle-6.14Ubuntu

Fixed in:6.14.0-1011.11~24.04.1USN-7699-1

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

Exploit Intelligence

0.13%probability of exploitation in 30 days

3rdpercentile

Low risk: more likely to be exploited than 3% of all known CVEs.

References

Patch2

Related Vulnerabilities

Other CWE-908 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2023-24941	Critical	9.8	95%	-	Fix
CVE-2007-1751	High	9.3	61%	-	-
CVE-2008-0081	Critical	9.8	58%	-	-
CVE-2020-1934	Medium	5.3	52%	-	Fix
CVE-2011-1255	High	9.3	42%	-	-

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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 2025-11-14.