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CVE-2016-3136

27
FAUCET Score

CVE-2016-3136 is a NULL pointer dereference vulnerability in the Linux kernel's mct_u232.c driver, affecting Linux distributions including Canonical and Novell. A physically proximate attacker can trigger a system crash by connecting a specially crafted USB device lacking two interrupt-in endpoint descriptors. Rated Medium severity (CVSS 4.6), this vulnerability requires physical access and results in a denial of service. While not listed in CISA's KEV catalog and with no observed active exploitation, a proof-of-concept exploit exists on ExploitDB, though it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.5.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*

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
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-39541 · Mar 9, 2016
This CVE's current EPSS score of 0.0180 is in the 99th percentile among its peer group of 1,531 CVEs.

Social Chatter

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-2016-3136Low

kernel: Crash on invalid USB device descriptors (mct_u232 driver)

Mar 9, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
lists.opensuse.org / opensuse-security-announce/2016-05/msg00060.html
lists.opensuse.org / opensuse-security-announce/2016-06/msg00054.html
lists.opensuse.org / opensuse-security-announce/2016-06/msg00056.html
lists.opensuse.org / opensuse-security-announce/2016-07/msg00005.html
bugzilla.redhat.com / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/4e9a0b05257f29cf4b75f3209243ed71614d062e
exploit-db.com / exploits/39541
debian.org / security/2016/dsa-3607
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.5.1
openwall.com / lists/oss-security/2016/03/14/2
securityfocus.com / bid/84299
ubuntu.com / usn/USN-2968-1
ubuntu.com / usn/USN-2968-2
ubuntu.com / usn/USN-2970-1
ubuntu.com / usn/USN-2971-1
ubuntu.com / usn/USN-2971-2
ubuntu.com / usn/USN-2971-3
ubuntu.com / usn/USN-2996-1
ubuntu.com / usn/USN-2997-1
ubuntu.com / usn/USN-3000-1