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CVE-2024-43871

17
FAUCET Score

CVE-2024-43871 is a memory leakage vulnerability in the Linux kernel, specifically within the devres framework, affecting systems utilizing devm_free_percpu() to deallocate memory. This flaw, rated Medium with a CVSS score of 5.5, allows a local attacker with low privileges to cause a denial of service by exhausting system memory. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.10, < 4.19.320CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.282CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.224CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.165CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.103CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
14.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 65th 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

No media coverage found for this CVE.

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 (14)

codesyspatch availablevia llm_extracted
View patch
esphomepatch availablevia llm_extracted
View patch
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.164.1-1 on CBL Mariner 2.0Fixed in: 5.15.167.1-1
microsoftpatch availablevia msrc
Product: 19670-17086Fixed in: 5.15.167.1-1
microsoftpatch availablevia msrc
Product: 17250-17086Fixed in: 5.15.167.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 5.15.167.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 5.15.167.1-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.167.1-1 on CBL Mariner 2.0Fixed in: 5.15.167.1-1
microsoftpatch availablevia msrc
Product: 17207-16823Fixed in: 5.15.167.1-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.4 Extended Update SupportFixed in: kernel-0:5.14.0-427.67.1.el9_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-570.12.1.el9_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-553.22.1.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-553.22.1.rt7.363.el8_10
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (5)

codesysllm-codesys-fe85e88fbae25bb9CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
esphomellm-esphome-ed450ce9fd6a7380CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
microsoft2024-Oct/CVE-2024-43871

CVE-2024-43871

Oct 8, 2024
redhatCVE-2024-43871Moderate

kernel: devres: Fix memory leakage caused by driver API devm_free_percpu()

Aug 21, 2024
microsoft2024-Aug/CVE-2024-43871Moderate

devres: Fix memory leakage caused by driver API devm_free_percpu()

Aug 13, 2024

References

cert-portal.siemens.com / productcert/html/ssa-265688.html
cert-portal.siemens.com / productcert/html/ssa-355557.html
cert-portal.siemens.com / productcert/html/ssa-398330.html
cert-portal.siemens.com / productcert/html/ssa-613116.html
git.kernel.org / stable/c/3047f99caec240a88ccd06197af2868da1af6a96
Patch
git.kernel.org / stable/c/3dcd0673e47664bc6c719ad47dadac6d55d5950d
Patch
git.kernel.org / stable/c/700e8abd65b10792b2f179ce4e858f2ca2880f85
Patch
git.kernel.org / stable/c/95065edb8ebb27771d5f1e898eef6ab43dc6c87c
Patch
git.kernel.org / stable/c/b044588a16a978cd891cb3d665dd7ae06850d5bf
Patch
git.kernel.org / stable/c/b67552d7c61f52f1271031adfa7834545ae99701
Patch
git.kernel.org / stable/c/bd50a974097bb82d52a458bd3ee39fb723129a0c
Patch
git.kernel.org / stable/c/ef56dcdca8f2a53abc3a83d388b8336447533d85
Patch
lists.debian.org / debian-lts-announce/2024/10/msg00003.html
lists.debian.org / debian-lts-announce/2025/01/msg00001.html