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CVE-2024-39482

17
FAUCET Score

CVE-2024-39482 is a medium-severity vulnerability in the Linux kernel's bcache component, specifically an out-of-bounds write due to improper handling of variable-length arrays in the btree_iter structure. This flaw, categorized as CWE-770 (Improper Restriction of Operations within the Bounds of a Memory Buffer), could lead to a denial of service (A:H) if exploited by a local, low-privileged attacker (AV:L/AC:L/PR:L). There is currently 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
>= 5.10, < 5.10.221CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.15, < 5.15.162CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.1, < 6.1.94CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.6, < 6.6.34CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.9, < 6.9.5CPE 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
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
14.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 61st 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 (15)

codesyspatch availablevia llm_extracted
View patch
esphomepatch availablevia llm_extracted
View patch
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 6.6.35.1-5
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 6.6.35.1-5
microsoftpatch availablevia msrc
Product: 16839-17084Fixed in: 6.6.35.1-5
microsoftpatch availablevia msrc
Product: 17233-16823Fixed in: 5.15.162.2-1
microsoftpatch availablevia msrc
Product: 19702-17086Fixed in: 5.15.162.2-1
microsoftpatch availablevia msrc
Product: 17292-17086Fixed in: 5.15.162.2-1
microsoftpatch availablevia msrc
Product: 17671-17084Fixed in: -
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.162.2-1 on CBL Mariner 2.0Fixed in: 5.15.162.2-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.160.1-1 on CBL Mariner 2.0Fixed in: 5.15.162.2-1
microsoftpatch availablevia msrc
Product: azl3 kernel 6.6.35.1-5 on Azure Linux 3.0Fixed in: -
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 5.15.162.2-1
microsoftpatch availablevia msrc
Product: azl3 kernel 6.6.22.1-2 on Azure Linux 3.0Fixed in: 6.6.35.1-5
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 5.15.162.2-1

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-Sep/CVE-2024-39482

CVE-2024-39482

Sep 10, 2024
microsoft2024-Jul/CVE-2024-39482Moderate

bcache: fix variable length array abuse in btree_iter

Jul 9, 2024
redhatCVE-2024-39482Moderate

kernel: bcache: fix variable length array abuse in btree_iter

Jul 5, 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-613116.html
git.kernel.org / stable/c/0c31344e22dd8d6b1394c6e4c41d639015bdc671
Mailing ListPatch
git.kernel.org / stable/c/2c3d7b03b658dc8bfa6112b194b67b92a87e081b
Mailing ListPatch
git.kernel.org / stable/c/3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31
Mailing ListPatch
git.kernel.org / stable/c/5a1922adc5798b7ec894cd3f197afb6f9591b023
Mailing ListPatch
git.kernel.org / stable/c/6479b9f41583b013041943c4602e1ad61cec8148
Mailing ListPatch
git.kernel.org / stable/c/934e1e4331859183a861f396d7dfaf33cb5afb02
Mailing ListPatch