CVE-2018-1000115
Memcached version 1.5.5 contains an Insufficient Control of Network Message Volume (Network Amplification, CWE-406) vulnerability in the…
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Public exploit
2 references of the record are tagged as an exploit or proof of concept: anyone can try it against an unpatched system.
- 44264 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 44265 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Timeline
ID reserved
By mitre
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 88.0% · top 0.2% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (15)
- RHBA-2018:2140 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:1593 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3588-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/memcached/memcached/wiki/ReleaseNotes156 (opens in a new tab)x_refsource_MISCx_transferred
- 44264 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://twitter.com/dormando/status/968579781729009664 (opens in a new tab)x_refsource_MISCx_transferred
- 44265 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://github.com/memcached/memcached/commit/dbb7a8af90054bf4ef51f5814ef7ceb17d83d974 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2018:2857 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:1627 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:2331 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-4218 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://blogs.akamai.com/2018/03/memcached-fueled-13-tbps-attacks.html (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/memcached/memcached/issues/348 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.synology.com/support/security/Synology_SA_18_07 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-1000115)Record last updated .