Is CVE-2025-38435 in the CISA KEV catalog?

No. CVE-2025-38435 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-38435?

CVE-2025-38435 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2025-38435?

CVE-2025-38435 has an EPSS score of 0.14% (3th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-38435?

Upgrade linux-aws-6.14 on ubuntu 24.04 to 6.14.0-1015.15~24.04.1 or later. Fixes are available for 49 affected products.

CVE & CISA-KEV Catalog

CVE-2025-38435

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: riscv: vector: Fix context save/restore with xtheadvector Previously only v0-v7 were correctly saved/restored, and the context of v8-v31 are damanged. Correctly save/restore v8-v31 to avoid breaking userspace.

How to fix

Remediation Available

linux-aws-6.14Ubuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-3

linux-azure-6.14Ubuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7834-1

linux-azure-nvidia-6.14Ubuntu

Fixed in:6.14.0-1007.7USN-7834-1

linux-gcp-6.14Ubuntu

Fixed in:6.14.0-1018.19~24.04.1USN-7833-4

linux-hwe-6.14Ubuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-image-6.14.0-1007-azure-nvidiaUbuntu

Fixed in:6.14.0-1007.7USN-7834-1

linux-image-6.14.0-1014-azureUbuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7834-1

linux-image-6.14.0-1014-oemUbuntu

Fixed in:6.14.0-1014.14USN-7833-1

linux-image-6.14.0-1014-realtimeUbuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7833-2

linux-image-6.14.0-1015-awsUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-3

linux-image-6.14.0-1015-aws-64kUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-3

linux-image-6.14.0-1015-oracleUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-1

linux-image-6.14.0-1015-oracle-64kUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-1

linux-image-6.14.0-1018-gcpUbuntu

Fixed in:6.14.0-1018.19~24.04.1USN-7833-4

linux-image-6.14.0-1018-gcp-64kUbuntu

Fixed in:6.14.0-1018.19~24.04.1USN-7833-4

linux-image-6.14.0-34-genericUbuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-image-6.14.0-34-generic-64kUbuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-image-awsUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-3

linux-image-aws-6.14Ubuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-3

linux-image-aws-64kUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-3

linux-image-aws-64k-6.14Ubuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-3

linux-image-azureUbuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7834-1

linux-image-azure-6.14Ubuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7834-1

linux-image-azure-nvidiaUbuntu

Fixed in:6.14.0-1007.7USN-7834-1

linux-image-azure-nvidia-6.14Ubuntu

Fixed in:6.14.0-1007.7USN-7834-1

linux-image-gcpUbuntu

Fixed in:6.14.0-1018.19~24.04.1USN-7833-4

linux-image-gcp-6.14Ubuntu

Fixed in:6.14.0-1018.19~24.04.1USN-7833-4

linux-image-gcp-64kUbuntu

Fixed in:6.14.0-1018.19~24.04.1USN-7833-4

linux-image-gcp-64k-6.14Ubuntu

Fixed in:6.14.0-1018.19~24.04.1USN-7833-4

linux-image-generic-6.14Ubuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-image-generic-64k-6.14Ubuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

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

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-image-oem-24.04Ubuntu

Fixed in:6.14.0-1014.14USN-7833-1

linux-image-oem-24.04aUbuntu

Fixed in:6.14.0-1014.14USN-7833-1

linux-image-oem-24.04bUbuntu

Fixed in:6.14.0-1014.14USN-7833-1

linux-image-oem-24.04cUbuntu

Fixed in:6.14.0-1014.14USN-7833-1

linux-image-oem-6.14Ubuntu

Fixed in:6.14.0-1014.14USN-7833-1

linux-image-oracleUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-1

linux-image-oracle-6.14Ubuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-1

linux-image-oracle-64kUbuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-1

linux-image-oracle-64k-6.14Ubuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-1

linux-image-realtime-6.14Ubuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7833-2

linux-image-realtime-hwe-24.04Ubuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7833-2

linux-image-virtual-6.14Ubuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.14.0-34.34~24.04.1USN-7856-1

linux-oem-6.14Ubuntu

Fixed in:6.14.0-1014.14USN-7833-1

linux-oracle-6.14Ubuntu

Fixed in:6.14.0-1015.15~24.04.1USN-7833-1

linux-realtime-6.14Ubuntu

Fixed in:6.14.0-1014.14~24.04.1USN-7833-2

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

Exploit Intelligence

0.14%probability of exploitation in 30 days

3rdpercentile

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

References

Patch2

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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 2025-11-19.