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CVE-2015-7553

14
FAUCET Score

CVE-2015-7553 describes a race condition in the kernel of Red Hat Enterprise Linux 7, kernel-rt, and Red Hat Enterprise MRG 2 when the nfnetlink_log module is loaded. This vulnerability allows a local attacker to trigger a denial of service (system panic) by creating specific netlink sockets. With a CVSSv3 score of 4.7 (Medium), exploitation requires local access and high attack complexity, leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:redhat:kernel-rt:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 53rd percentile among its peer group of 1,296 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-327.el7
View patch
redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2015-7553Moderate

kernel: nfnetlink race in NETLINK_NFLOG socket creation

Dec 15, 2015

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party AdvisoryVendor Advisory