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CVE-2018-1000127

24
FAUCET Score

CVE-2018-1000127 is an Integer Overflow vulnerability in memcached versions prior to 1.4.37, specifically within the items.c:item_free() function, affecting products like canonical, debian, memcached, and redhat. This high-severity vulnerability (CVSS 7.5) is exploitable via network connectivity to the memcached service, requiring no user interaction, and can lead to data corruption and deadlocks. While the vulnerability has a high impact on availability, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.37CPE matchmatch criteria
cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.28%
Probability of exploitation in next 30 days
EPSS Percentile
81.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0228 is in the 67th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (9)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 10.0 (Newton)Fixed in: memcached-0:1.4.39-2.el7ost
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: memcached
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: memcached
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: memcached
redhatend of lifevia redhat_api
Product: Red Hat Mobile Application Platform 4Fixed in: rhmap-memcached-docker
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 11 (Ocata)Fixed in: memcached
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: memcached
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: memcached

Vendor Advisories (1)

redhatCVE-2018-1000127Moderate

memcached: Integer Overflow in items.c:item_free()

Apr 27, 2017

References

access.redhat.com / errata/RHSA-2018:2290
Third Party Advisory
github.com / memcached/memcached/commit/a8c4a82787b8b6c256d61bd5c42fb7f92d1bae00
PatchThird Party Advisory
github.com / memcached/memcached/issues/271
Third Party Advisory
github.com / memcached/memcached/wiki/ReleaseNotes1437
Release NotesThird Party Advisory
lists.debian.org / debian-lts-announce/2018/03/msg00031.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3601-1
Third Party Advisory
debian.org / security/2018/dsa-4218
Third Party Advisory