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CVE-2018-16862

20
FAUCET Score

CVE-2018-16862 describes a Linux kernel vulnerability in the cleancache subsystem, affecting distributions like Canonical, Debian, and Red Hat. This flaw could lead to information disclosure, where a newly created file might contain remnants of old file data due to improper inode clearing. Rated Medium (CVSS 5.5), it requires local access and low privileges, with no user interaction needed for an attacker to potentially read sensitive data. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 93rd percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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 0.1 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-alt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2018-16862Moderate

kernel: cleancache: Infoleak of deleted files after reuse of old inodes

Nov 24, 2018

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2019/03/msg00017.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2019/03/msg00034.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2019/04/msg00004.html
lore.kernel.org / patchwork/patch/1011367
Issue TrackingPatchVendor Advisory
seclists.org / oss-sec/2018/q4/169
Mailing ListThird Party Advisory
usn.ubuntu.com / 3879-1
Third Party Advisory
usn.ubuntu.com / 3879-2
Third Party Advisory
usn.ubuntu.com / 4094-1
usn.ubuntu.com / 4118-1
securityfocus.com / bid/106009
Third Party AdvisoryVDB Entry