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CVE-2015-7515

22
FAUCET Score

CVE-2015-7515 describes a NULL pointer dereference vulnerability in the aiptek_probe function of the Linux kernel (versions prior to 4.4), specifically impacting the aiptek.c driver. This flaw allows a physically proximate attacker to trigger a system crash and denial of service by connecting a specially crafted USB device lacking endpoints. With a CVSS score of 4.6 (Medium), exploitation requires physical access and has low attack complexity, resulting in high availability impact but no confidentiality or integrity compromise. While there is an ExploitDB entry (EDB-39544) demonstrating a proof-of-concept for specific Linux kernel versions, there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.4:rc1:*:*:*:*:*:*
4.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.4:rc2:*:*:*:*:*:*
4.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.4:rc3:*:*:*:*:*:*
4.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.4:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-39544 · Mar 9, 2016
This CVE's current EPSS score of 0.0180 is in the 99th percentile among its peer group of 1,532 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 (6)

github_advisoryvendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel
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-2015-7515Low

kernel: aiptek: crash on invalid USB device descriptors

Nov 25, 2015

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
lists.opensuse.org / opensuse-security-announce/2016-03/msg00094.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-04/msg00045.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00038.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
github.com / torvalds/linux/commit/8e20cf2bce122ce9262d6034ee5d5b76fbb92f96
Vendor Advisory
security-tracker.debian.org / tracker/CVE-2015-7515
Third Party Advisory
exploit-db.com / exploits/39544
Third Party AdvisoryVDB Entry
debian.org / security/2016/dsa-3607
Third Party Advisory
securityfocus.com / bid/84288
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2967-1
Third Party Advisory
ubuntu.com / usn/USN-2967-2
Third Party Advisory
ubuntu.com / usn/USN-2968-1
Third Party Advisory
ubuntu.com / usn/USN-2968-2
Third Party Advisory
ubuntu.com / usn/USN-2969-1
Third Party Advisory
ubuntu.com / usn/USN-2970-1
Third Party Advisory
ubuntu.com / usn/USN-2971-1
Third Party Advisory
ubuntu.com / usn/USN-2971-2
Third Party Advisory
ubuntu.com / usn/USN-2971-3
Third Party Advisory