CVE-2016-8704

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 23%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

An integer overflow in the process_bin_append_prepend function in Memcached, which is responsible for processing multiple commands of Memcached binary protocol, can be abused to cause heap overflow and lead to remote code execution.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
97.5%
KEV
Not listed

Published

January 6, 2017

Last Modified

May 6, 2026

Advisory Details (7)

Auto-updated May 9, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
generic
http://rhn.redhat.com/errata/RHSA-2016-2820.html
generic
http://rhn.redhat.com/errata/RHSA-2016-2819.html
generic

memcached: Multiple vulnerabilities (GLSA 201701-12) — Gentoo security

https://security.gentoo.org/glsa/201701-12
redhat Patch Available
https://access.redhat.com/errata/RHSA-2017:0059
generic🟡 PoC Available

TALOS-2016-0219 || Cisco Talos Intelligence Group - Comprehensive Threat Intelligence

http://www.talosintelligence.com/reports/TALOS-2016-0219/
generic
http://www.securityfocus.com/bid/94083
generic

[SECURITY] [DSA 3704-1] memcached security update

http://www.debian.org/security/2016/dsa-3704

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumemcached (1.4.25-2ubuntu2.1) @ yakkety2026-05-20ubuntu
redhatrhmap-fh-openshift-templates-0:1.0.0-5.el72017-01-11redhat
redhatmemcached-0:1.4.4-3.el6_8.12016-11-23redhat
redhatmemcached-0:1.4.15-10.el7_3.12016-11-23redhat

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.

All Vendor Advisories

(4)

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 10× in last 7d / 37× 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.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-24 14:13 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:24 UTCEG score recompute
  4. 2026-07-22 22:03 UTCEG score recompute
  5. 2026-07-22 14:04 UTCEPSS rescore
  6. 2026-07-21 15:21 UTCEPSS rescore
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  17. 2026-07-15 01:56 UTCEPSS rescore
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  20. 2026-07-12 05:43 UTCEPSS rescore
  21. 2026-07-11 08:24 UTCEPSS rescore
  22. 2026-07-09 19:06 UTCEPSS rescore
  23. 2026-07-08 15:10 UTCEPSS rescore
  24. 2026-07-08 13:45 UTCOSV refresh
  25. 2026-07-07 13:42 UTCEPSS rescore
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  1. 2026-07-06 16:24 UTCEPSS rescore
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  3. 2026-07-06 02:20 UTCEPSS rescore
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  6. 2026-07-01 15:02 UTCEPSS rescore
  7. 2026-06-30 23:19 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
  9. 2026-06-28 14:04 UTCEPSS rescore
  10. 2026-06-28 04:53 UTCEPSS rescore
  11. 2026-06-27 03:05 UTCEPSS rescore
  12. 2026-06-25 13:47 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-23 21:30 UTCEPSS rescore
  15. 2026-06-22 14:23 UTCEPSS rescore
  16. 2026-06-21 01:57 UTCEPSS rescore
  17. 2026-06-21 01:57 UTCEPSS rescore
  18. 2026-06-20 01:19 UTCOSV refresh
  19. 2026-06-18 17:50 UTCEPSS rescore
  20. 2026-06-18 17:50 UTCEPSS rescore
  21. 2026-06-17 17:50 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-16 17:50 UTCEPSS rescore
  24. 2026-06-15 17:45 UTCEPSS rescore
  25. 2026-06-14 23:14 UTCEPSS rescore
  26. 2026-06-14 23:14 UTCEPSS rescore
  27. 2026-06-13 22:57 UTCEPSS rescore
  28. 2026-06-13 22:57 UTCEPSS rescore
  29. 2026-06-12 23:09 UTCEPSS rescore
  30. 2026-06-11 13:57 UTCEPSS rescore
  31. 2026-06-07 15:22 UTCEPSS rescore
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  40. 2026-06-02 20:10 UTCEPSS rescore
  41. 2026-06-01 13:49 UTCEPSS rescore
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  43. 2026-05-31 22:28 UTCEPSS rescore
  44. 2026-05-31 22:28 UTCEPSS rescore
  45. 2026-05-31 03:25 UTCOSV refresh
  46. 2026-05-31 00:14 UTCEPSS rescore
  47. 2026-05-29 13:41 UTCEPSS rescore
  48. 2026-05-28 13:42 UTCEPSS rescore
  49. 2026-05-28 13:42 UTCEPSS rescore
  50. 2026-05-27 13:38 UTCEPSS rescore
  51. 2026-05-27 13:38 UTCEPSS rescore
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  61. 2026-05-20 10:56 UTCVendor advisory
  62. 2026-05-20 10:56 UTCGHSA enrichment
  63. 2026-05-20 06:41 UTCVendor advisory
  64. 2026-05-20 06:41 UTCGHSA enrichment
  65. 2026-05-20 02:26 UTCVendor advisory
  66. 2026-05-20 02:26 UTCGHSA enrichment
  67. 2026-05-19 22:12 UTCVendor advisory
  68. 2026-05-19 22:12 UTCGHSA enrichment
  69. 2026-05-19 17:58 UTCVendor advisory
  70. 2026-05-19 17:58 UTCGHSA enrichment
  71. 2026-05-19 13:44 UTCVendor advisory
  72. 2026-05-19 13:44 UTCGHSA enrichment
  73. 2026-05-19 09:29 UTCVendor advisory
  74. 2026-05-19 09:29 UTCGHSA enrichment
  75. 2026-05-19 05:16 UTCVendor advisory

Frequently asked(5)

What is CVE-2016-8704?
CVE-2016-8704 is a critical vulnerability published on January 6, 2017. An integer overflow in the processbinappend_prepend function in Memcached, which is responsible for processing multiple commands of Memcached binary protocol, can be abused to cause heap overflow and lead to remote code execution.
When was CVE-2016-8704 disclosed?
CVE-2016-8704 was first published in the National Vulnerability Database on January 6, 2017, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-8704 actively exploited?
CVE-2016-8704 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-8704?
CVE-2016-8704 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-8704?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-8704, 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.

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