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CVE-2025-38239

21
FAUCET Score

CVE-2025-38239 is an array-index-out-of-bounds vulnerability in the megaraid_sas driver of the Linux kernel, affecting Debian and Ubuntu Linux kernel versions. This flaw can lead to out-of-bounds memory access on systems with DRAM interleave enabled. It carries a CVSSv3.1 score of 7.8 (HIGH), indicating that a local attacker with low privileges could achieve high confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, but it has garnered significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.17, < 6.1.143CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.96CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.12.36CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.13, < 6.15.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 19th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (17)

microsoftpatch availablevia msrc
Product: azl3 kernel 6.6.92.2-2 on Azure Linux 3.0Fixed in: 6.6.96.1-1
microsoftpatch availablevia msrc
Product: azl3 kernel 6.6.96.1-1 on Azure Linux 3.0Fixed in: 6.6.96.1-1
microsoftpatch availablevia msrc
Product: 19880-17084Fixed in: 6.6.96.1-1
microsoftpatch availablevia msrc
Product: 17085-17084Fixed in: 6.6.96.1-1
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx (noble)Fixed in: 6.8.0-1023.24
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-6.8 (jammy)Fixed in: 6.8.0-1044.44~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (noble)Fixed in: 6.8.0-1044.44
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fips (noble)Fixed in: 6.8.0-1046.52+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (noble)Fixed in: 6.8.0-1046.52
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-6.8 (jammy)Fixed in: 6.8.0-1051.57~22.04.1
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel

Vendor Advisories (7)

ubuntuUSN-8126-1

Linux kernel (Azure) vulnerabilities

Mar 25, 2026
ubuntuUSN-8074-2

Linux kernel (Azure FIPS) vulnerabilities

Mar 4, 2026
ubuntuUSN-8074-1

Linux kernel (Azure) vulnerabilities

Mar 4, 2026
ubuntuUSN-8052-2

Linux kernel (Xilinx) vulnerabilities

Feb 24, 2026
ubuntuUSN-8028-8

Linux kernel (IBM) vulnerabilities

Feb 24, 2026
redhatCVE-2025-38239Low

kernel: scsi: megaraid_sas: Fix invalid node index

Jul 9, 2025
microsoft2025-Jul/CVE-2025-38239Important

scsi: megaraid_sas: Fix invalid node index

Jul 8, 2025

References

git.kernel.org / stable/c/074efb35552556a4b3b25eedab076d5dc24a8199
Patch
git.kernel.org / stable/c/19a47c966deb36624843b7301f0373a3dc541a05
Patch
git.kernel.org / stable/c/752eb816b55adb0673727ba0ed96609a17895654
Patch
git.kernel.org / stable/c/bf2c1643abc3b2507d56bb6c22bf9897272f8a35
Patch
git.kernel.org / stable/c/f1064b3532192e987ab17be7281d5fee36fd25e1
Patch
lists.debian.org / debian-lts-announce/2025/10/msg00008.html
Mailing ListThird Party Advisory