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CVE-2018-1000115

Memcached version 1.5.5 contains an Insufficient Control of Network Message Volume (Network Amplification, CWE-406) vulnerability in the UDP support of the memcached server that can result in denial of service via network flood (traffic amplification of 1:50,000 has been reported by reliable sources). This attack appear to be exploitable via network connectivity to port 11211 UDP. This…

Severity
High 7.5
Published
5 Mar 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
88% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Uncontrolled resource consumption (CWE-400)
Attack
Over the network · No login needed · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Sources
NVD

Description

Memcached version 1.5.5 contains an Insufficient Control of Network Message Volume (Network Amplification, CWE-406) vulnerability in the UDP support of the memcached server that can result in denial of service via network flood (traffic amplification of 1:50,000 has been reported by reliable sources). This attack appear to be exploitable via network connectivity to port 11211 UDP. This vulnerability appears to have been fixed in 1.5.6 due to the disabling of the UDP protocol by default.

From NVD.

Affected software

SoftwareAffected versions
MemcachedServers and applications · cpe:a:memcached:memcached
  • Version 1.5.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-1000115
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-1000115