CVE-2017-7670

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.7%, top 17% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Traffic Router component of the incubating Apache Traffic Control project is vulnerable to a Slowloris style Denial of Service attack. TCP connections made on the configured DNS port will remain in the ESTABLISHED state until the client explicitly closes the connection or Traffic Router is restarted. If connections remain in the ESTABLISHED state indefinitely and accumulate in number to match the size of the thread pool dedicated to processing DNS requests, the thread pool becomes exhausted. Once the thread pool is exhausted, Traffic Router is unable to service any DNS request, regardless of transport protocol.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
90.9%
KEV
Not listed

Published

July 10, 2017

Last Modified

May 13, 2026

References (6)

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/apache/trafficcontrol—1.1.4-0.20170531185407-738c10fa1b58—

Data Freshness Timeline

(refreshed 9× in last 7d / 42× 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 102 total refreshes for this CVE.

  1. 2026-07-11 20:52 UTCOSV refresh
  2. 2026-07-11 08:24 UTCEPSS rescore
  3. 2026-07-09 19:06 UTCEPSS rescore
  4. 2026-07-08 15:11 UTCEPSS rescore
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  1. 2026-06-23 03:30 UTCOSV refresh
  2. 2026-06-21 14:54 UTCEPSS rescore
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  25. 2026-06-06 13:45 UTCEPSS rescore
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  27. 2026-06-06 00:23 UTCOSV refresh
  28. 2026-06-05 22:44 UTCEPSS rescore
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  49. 2026-05-23 00:10 UTCEG score recompute
  50. 2026-05-22 21:15 UTCEPSS rescore
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  57. 2026-05-22 11:54 UTCEG score recompute
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  75. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2017-7670?
CVE-2017-7670 is a high vulnerability published on July 10, 2017. The Traffic Router component of the incubating Apache Traffic Control project is vulnerable to a Slowloris style Denial of Service attack. TCP connections made on the configured DNS port will remain in the ESTABLISHED state until the client explicitly closes the connection or Traffic Router is…
When was CVE-2017-7670 disclosed?
CVE-2017-7670 was first published in the National Vulnerability Database on July 10, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-7670 actively exploited?
CVE-2017-7670 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-7670?
CVE-2017-7670 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-7670?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-7670, 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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