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CVE-2018-11237

25
FAUCET Score

CVE-2018-11237 is a buffer overflow vulnerability in the GNU C Library's AVX-512 optimized mempcpy function, affecting glibc versions 2.27 and earlier, and subsequently products from Canonical, GNU, NetApp, Oracle, and Red Hat. With a CVSS score of 7.8 (HIGH), this local vulnerability allows an attacker to achieve high confidentiality, integrity, and availability impacts with low attack complexity. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.27CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

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
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 90th percentile among its peer group of 16,994 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 (2)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: glibc-0:2.17-260.el7
View patch

Vendor Advisories (1)

redhatCVE-2018-11237Moderate

glibc: Buffer overflow in __mempcpy_avx512_no_vzeroupper

May 17, 2018

References

access.redhat.com / errata/RHBA-2019:0327
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3092
Third Party Advisory
security.netapp.com / advisory/ntap-20190329-0001
Broken Link
security.netapp.com / advisory/ntap-20190401-0001
Third Party Advisory
sourceware.org / bugzilla/show_bug.cgi
Issue TrackingPatchThird Party Advisory
usn.ubuntu.com / 4416-1
Third Party Advisory
exploit-db.com / exploits/44750
Broken LinkThird Party AdvisoryVDB Entry
oracle.com / technetwork/security-advisory/cpuapr2019-5072813.html
PatchThird Party Advisory
securityfocus.com / bid/104256
Broken Link