CVE-2018-1000115

HIGHNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 88% probability of exploitation within the next 30 days (top 0.2% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Trending — 5 sources updated this weekWeaponized
7.5
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 88%
CISA-KEV: Not listedEPSS: 88%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
80(Track)
EG Risk 80/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation88% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.8%
KEV
Not listed

Published

March 5, 2018

Last Modified

November 21, 2024

References (30)

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumemcached (1.4.25-2ubuntu1.3) @ xenial2026-05-28ubuntu
redhatopenstack-tripleo-heat-templates-0:0.8.14-42.el7ost2018-10-02redhat
redhatpython-tripleoclient-0:7.3.10-3.el7ost2018-08-20redhat
redhatopenstack-tripleo-heat-templates-0:2.0.0-65.el7ost2018-07-05redhat
redhatpuppet-tripleo-0:6.5.10-3.el7ost2018-05-18redhat
redhatpuppet-tripleo-0:5.6.8-6.el7ost2018-05-17redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(6)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:31 UTCEG score recompute
  2. 2026-07-22 21:30 UTCEG score recompute▲ 1.50
  3. 2026-07-22 21:30 UTCVendor advisory
  4. 2026-07-22 21:30 UTCGHSA enrichment
  5. 2026-07-21 16:18 UTCOSV refresh
  6. 2026-07-21 15:21 UTCEPSS rescore
  7. 2026-07-15 16:55 UTCEPSS rescore
  8. 2026-07-15 16:54 UTCEPSS rescore
  9. 2026-07-06 16:24 UTCEPSS rescore
  10. 2026-07-06 16:24 UTCEPSS rescore
  11. 2026-07-04 12:26 UTCOSV refresh
  12. 2026-07-01 15:03 UTCEPSS rescore
  13. 2026-06-27 03:06 UTCEPSS rescore
  14. 2026-06-24 14:02 UTCEPSS rescore
  15. 2026-06-24 14:02 UTCEPSS rescore
  16. 2026-06-23 21:30 UTCEPSS rescore
  17. 2026-06-23 21:30 UTCEPSS rescore
  18. 2026-06-22 14:23 UTCEPSS rescore
  19. 2026-06-22 14:23 UTCEPSS rescore
  20. 2026-06-16 00:09 UTCOSV refresh
  21. 2026-06-15 17:45 UTCEPSS rescore
  22. 2026-06-13 22:58 UTCEPSS rescore
  23. 2026-06-13 22:57 UTCEPSS rescore
  24. 2026-06-12 23:09 UTCEPSS rescore
  25. 2026-06-12 23:09 UTCEPSS rescore
Show 19 more
  1. 2026-06-10 22:15 UTCEPSS rescore
  2. 2026-06-10 13:19 UTCEPSS rescore
  3. 2026-06-08 14:14 UTCEPSS rescore
  4. 2026-06-08 14:14 UTCEPSS rescore
  5. 2026-06-05 22:44 UTCEPSS rescore
  6. 2026-06-05 22:44 UTCEPSS rescore
  7. 2026-06-05 06:08 UTCEPSS rescore
  8. 2026-06-05 06:08 UTCEPSS rescore
  9. 2026-06-04 13:10 UTCEPSS rescore
  10. 2026-06-04 13:10 UTCEPSS rescore
  11. 2026-06-01 13:49 UTCEPSS rescore
  12. 2026-06-01 13:49 UTCEPSS rescore
  13. 2026-05-29 13:41 UTCEPSS rescore
  14. 2026-05-28 13:42 UTCEPSS rescore
  15. 2026-05-28 13:42 UTCEPSS rescore
  16. 2026-05-28 10:51 UTCEG score recompute
  17. 2026-05-28 10:51 UTCVendor advisory
  18. 2026-05-28 10:51 UTCGHSA enrichment
  19. 2026-05-27 10:43 UTCOSV refresh

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-44265
    First seen Mar 8, 2018

    Memcached 1.5.5 - 'Memcrashed ' Insufficient Control of Network Message Volume Denial of Service With Shodan API

    Open source ↗
  • Exploit-DBEDB-44264
    First seen Mar 5, 2018

    Memcached 1.5.5 - 'Memcrashed' Insufficient Control Network Message Volume Denial of Service (1)

    Open source ↗
  • Metasploitauxiliary/scanner/memcached/memcached_amp✓ verified
    First seen Feb 27, 2018

    Memcached Stats Amplification Scanner

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-1000115?
CVE-2018-1000115 is a high vulnerability published on March 5, 2018. 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…
When was CVE-2018-1000115 disclosed?
CVE-2018-1000115 was first published in the National Vulnerability Database on March 5, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-1000115 actively exploited?
CVE-2018-1000115 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-1000115?
CVE-2018-1000115 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2018-1000115?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1000115, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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