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CVE-2015-8844

16
FAUCET Score

CVE-2015-8844 describes a denial-of-service vulnerability in the Linux kernel, specifically affecting PowerPC platforms before version 4.3.5. A local attacker can trigger a system panic by crafting an application that exploits an unchecked condition in the signal implementation. This vulnerability has a CVSS v3 score of 5.5 (Medium), indicating a low attack complexity and requiring local access, but resulting in high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.3.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 38th percentile among its peer group of 5,765 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-514.rt56.420.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-514.el7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-realtime

Vendor Advisories (1)

redhatCVE-2015-8844Moderate

kernel: incorrect restoration of machine specific registers from userspace

Apr 13, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
rhn.redhat.com / errata/RHSA-2016-2574.html
rhn.redhat.com / errata/RHSA-2016-2584.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/d2b9d2a5ad5ef04ff978c9923d19730cb05efd55
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.3.5
openwall.com / lists/oss-security/2016/04/13/1
securitytracker.com / id/1035594