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CVE-2015-8324

15
FAUCET Score

CVE-2015-8324 describes a denial-of-service vulnerability in the ext4 filesystem implementation of the Linux kernel prior to version 2.6.34. This flaw allows a physically proximate attacker to trigger a NULL pointer dereference and system panic by connecting a specially crafted USB device, due to improper data structure initialization during the ext4_fill_super function. The vulnerability has a CVSS v3 score of 4.6 (Medium), indicating a low attack complexity and no user interaction required, but necessitates physical access to the affected system. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.33.20CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.6MEDIUM

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
34.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 71st percentile among its peer group of 1,532 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-642.el6
View patch

Vendor Advisories (1)

redhatCVE-2015-8324Low

kernel: Null pointer dereference when mounting ext4

Nov 23, 2015

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
mirror.linux.org.au / linux/kernel/v2.6/ChangeLog-2.6.34
rhn.redhat.com / errata/RHSA-2016-0855.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/744692dc059845b2a3022119871846e74d4f6e11
PatchVendor Advisory
openwall.com / lists/oss-security/2015/11/23/2
oracle.com / technetwork/topics/security/linuxbulletinapr2016-2952096.html