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CVE-2016-4913

25
FAUCET Score

CVE-2016-4913 is a high-severity vulnerability affecting the Linux kernel (before 4.5.5) and distributions like Canonical, Novell, and Oracle. It stems from improper handling of null characters in Rock Ridge NM entries within isofs filesystems, allowing local users to potentially extract sensitive kernel memory or cause other unspecified impacts. With a CVSS score of 7.8 (HIGH), this vulnerability has a low attack complexity and requires local access, but can lead to high confidentiality, integrity, and availability impacts. 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
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
15.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
< 3.2.81CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 80th percentile among its peer group of 16,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-957.rt56.910.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-957.el7
View patch
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 MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2016-4913Low

kernel: Information leak when handling NM entries containing NUL

May 5, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00052.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00007.html
Mailing ListThird Party Advisory
access.redhat.com / errata/RHSA-2018:3083
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3096
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party AdvisoryVDB Entry
github.com / torvalds/linux/commit/99d825822eade8d827a1817357cbf3f889a552d6
Vendor Advisory
debian.org / security/2016/dsa-3607
Third Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.5.5
Vendor Advisory
openwall.com / lists/oss-security/2016/05/18/3
Mailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2016/05/18/5
Mailing ListPatchThird Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinjul2016-3090544.html
Third Party Advisory
oracle.com / technetwork/topics/security/ovmbulletinoct2016-3090547.html
Third Party Advisory
securityfocus.com / bid/90730
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3016-1
Third Party Advisory
ubuntu.com / usn/USN-3016-2
Third Party Advisory
ubuntu.com / usn/USN-3016-3
Third Party Advisory
ubuntu.com / usn/USN-3016-4
Third Party Advisory
ubuntu.com / usn/USN-3017-1
Third Party Advisory
ubuntu.com / usn/USN-3017-2
Third Party Advisory
ubuntu.com / usn/USN-3017-3
Third Party Advisory
ubuntu.com / usn/USN-3018-1
Third Party Advisory
ubuntu.com / usn/USN-3018-2
Third Party Advisory
ubuntu.com / usn/USN-3019-1
Third Party Advisory
ubuntu.com / usn/USN-3020-1
Third Party Advisory
ubuntu.com / usn/USN-3021-1
Third Party Advisory
ubuntu.com / usn/USN-3021-2
Third Party Advisory