Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2015-7566

22
FAUCET Score

CVE-2015-7566 describes a NULL pointer dereference vulnerability in the Linux kernel's visor.c driver, affecting various Linux distributions including SUSE and Novell products. This flaw allows a physically proximate attacker to cause a denial of service (system crash) by inserting a USB device lacking a bulk-out endpoint. Rated Medium severity (CVSS 4.6), the attack requires physical access and has low complexity, leading to high availability impact but no confidentiality or integrity impact. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an ExploitDB proof-of-concept exists, and the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
11CPE matchmatch criteria
cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:11:sp4:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:11:sp4:*:*:*:*:*:*
12CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12:sp1:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_server:11:extra:*:*:*:*:*:*

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
1.84%
Probability of exploitation in next 30 days
EPSS Percentile
76.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-39540 · Mar 9, 2016
This CVE's current EPSS score of 0.0184 is in the 99th percentile among its peer group of 1,531 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 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2015-7566Low

kernel: Crash on invalid USB device descriptors in visor driver

Jan 11, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
lists.fedoraproject.org / pipermail/package-announce/2016-February/176484.html
lists.fedoraproject.org / pipermail/package-announce/2016-January/175792.html
lists.fedoraproject.org / pipermail/package-announce/2016-January/176194.html
lists.opensuse.org / opensuse-security-announce/2016-06/msg00052.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00059.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-07/msg00005.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00038.html
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVDB Entry
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVDB Entry
github.com / torvalds/linux/commit/cb3232138e37129e88240a98a1d2aba2187ff57c
security-tracker.debian.org / tracker/CVE-2015-7566
Third Party AdvisoryVDB Entry
exploit-db.com / exploits/39540
debian.org / security/2016/dsa-3448
debian.org / security/2016/dsa-3503
securityfocus.com / archive/1/537733/100/0/threaded
securityfocus.com / bid/82975
ubuntu.com / usn/USN-2929-1
ubuntu.com / usn/USN-2929-2
ubuntu.com / usn/USN-2930-1
ubuntu.com / usn/USN-2930-2
ubuntu.com / usn/USN-2930-3
ubuntu.com / usn/USN-2932-1
ubuntu.com / usn/USN-2948-1
ubuntu.com / usn/USN-2948-2
ubuntu.com / usn/USN-2967-1
ubuntu.com / usn/USN-2967-2