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CVE-2016-8704

42
FAUCET Score

CVE-2016-8704 is a critical integer overflow vulnerability in the Memcached process_bin_append_prepend function, affecting Memcached versions. This flaw allows for remote code execution due to a heap overflow when processing multiple binary protocol commands. With a CVSS score of 9.8, it is easily exploitable over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation is currently reported, the vulnerability has garnered significant community attention and media coverage, indicating its potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.31CPE matchmatch criteria
cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
23.17%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.2317 is in the 94th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

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 6Fixed in: memcached-0:1.4.4-3.el6_8.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: memcached-0:1.4.15-10.el7_3.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Mobile Application Platform 4.2Fixed in: rhmap-fh-openshift-templates-0:1.0.0-5.el7
View patch
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 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-2016-8704Important

memcached: Server append/prepend remote code execution

Oct 31, 2016

References

rhn.redhat.com / errata/RHSA-2016-2819.html
rhn.redhat.com / errata/RHSA-2016-2820.html
access.redhat.com / errata/RHSA-2017:0059
security.gentoo.org / glsa/201701-12
debian.org / security/2016/dsa-3704
securityfocus.com / bid/94083
securitytracker.com / id/1037333
talosintelligence.com / reports/TALOS-2016-0219
ExploitTechnical DescriptionThird Party AdvisoryVDB Entry