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CVE-2025-38334

18
FAUCET Score

CVE-2025-38334 is a vulnerability in the Linux kernel's Intel SGX (Software Guard Extensions) implementation, affecting Debian and other Linux distributions. It allows for a denial-of-service by attempting to reclaim poisoned SGX pages, which can lead to a kernel panic and system shutdown. Rated Medium (CVSS 5.5), the vulnerability has a local attack vector with low complexity, requiring local user privileges to trigger. There is no known active exploitation, public exploit code, or inclusion in CISA's KEV catalog, though it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.11, < 6.1.142CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.95CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.12.35CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.13, < 6.15.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
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 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 26th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (13)

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: 19880-17084Fixed in: 6.6.96.1-1
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-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-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
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt
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 8Fixed in: kernel-rt

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-2025-38334Moderate

kernel: x86/sgx: Prevent attempts to reclaim poisoned pages

Jul 10, 2025
microsoft2025-Jul/CVE-2025-38334Moderate

x86/sgx: Prevent attempts to reclaim poisoned pages

Jul 8, 2025

References

git.kernel.org / stable/c/00a88e9ea1b170d579c56327c38f7e8cf689df87
Patch
git.kernel.org / stable/c/31dcbac94bfeabb86bf85b0c36803fdd6536437b
Patch
git.kernel.org / stable/c/62b62a2a6dc51ed6e8e334861f04220c9cf8106a
Patch
git.kernel.org / stable/c/dc5de5bd6deabd327ced2b2b1d0b4f14cd146afe
Patch
git.kernel.org / stable/c/ed16618c380c32c68c06186d0ccbb0d5e0586e59
Patch
lists.debian.org / debian-lts-announce/2025/10/msg00008.html
Third Party Advisory