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CVE-2018-10877

23
FAUCET Score

CVE-2018-10877 describes an out-of-bounds access vulnerability in the Linux kernel's ext4 filesystem, specifically within the ext4_ext_drop_refs() function, when processing a specially crafted ext4 image. This flaw affects various Linux distributions including Canonical, Debian, and Red Hat. With a CVSS score of 6.5 (Medium), successful exploitation requires high privileges and user interaction, leading to potential high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
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:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
4.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*
4.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.17:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.3
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.25%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0225 is in the 98th percentile among its peer group of 177 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (2)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-115.el7a
View patch

Vendor Advisories (1)

redhatCVE-2018-10877Low

kernel: out-of-bound access in ext4_ext_drop_refs function with a crafted ext4 image

Apr 16, 2018

References

access.redhat.com / errata/RHSA-2018:2948
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00020.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3753-1
Third Party Advisory
usn.ubuntu.com / 3753-2
Third Party Advisory
usn.ubuntu.com / 3754-1
Third Party Advisory
usn.ubuntu.com / 3871-1
Third Party Advisory
usn.ubuntu.com / 3871-3
Third Party Advisory
usn.ubuntu.com / 3871-4
Third Party Advisory
usn.ubuntu.com / 3871-5
Third Party Advisory
securityfocus.com / bid/104878
securityfocus.com / bid/106503
Third Party AdvisoryVDB Entry