What is CVE-2015-4002?

CVE-2015-4002 is a vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2015-06-07.

Is CVE-2015-4002 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Linux Kernel

CVE-2015-4002

drivers/staging/ozwpan/ozusbsvc1.c in the OZWPAN driver in the Linux kernel through 4.0.5 does not ensure that certain length values are sufficiently large, which allows remote attackers to cause a denial of service (system crash or large loop) or possibly execute arbitrary code via a crafted packet, related to the (1) oz_usb_rx and (2) oz_usb_handle_ep_data functions.

Vulnerability class: Buffer Overflow

Published 2015-06-07 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 9.0 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.083 (94.8th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.083 · newest: 0.083 · change: -0.001

Affected products

Linux Kernel
Canonical Ubuntu Linux — versions 14.04, 15.10
openSUSE — versions 13.2

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2015-4002

References

www.securityfocus.com/bid/74668 (VDB Entry, Third Party Advisory, vdb-entry)
github.com/torvalds/linux/commit/d114b9fe78c8d6fc6e70808c2092aa307c36dc8e (Vendor Advisory)
www.ubuntu.com/usn/USN-2665-1 (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html (vendor-advisory, Mailing List, Third Party Advisory)
github.com/torvalds/linux/commit/9a59029bc218b48eff8b5d4dde5662fd79d3e1a8 (Vendor Advisory)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Vendor Advisory)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Vendor Advisory)
openwall.com/lists/oss-security/2015/06/05/7 (mailing-list, Mailing List)
www.ubuntu.com/usn/USN-2667-1 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2015-4002?: CVE-2015-4002 is a vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2015-06-07.
Is CVE-2015-4002 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.