CVE-2018-11567

LOWNVD 3.33.3—
EchelonGraph scoreMEDIUM confidence

Score 3.3 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
3.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 3.3Exploit: NoneExposed: 0

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

Prior to 2018-04-27, the reprompt feature in Amazon Echo devices could be misused by a custom Alexa skill. The reprompt feature is designed so that if Alexa does not receive an input within 8 seconds, the device can speak a reprompt, then wait an additional 8 seconds for input; if the user still does not respond, the microphone is then turned off. The vulnerability involves empty output-speech reprompts, custom wildcard ("gibberish") input slots, and logging of detected speech. If a maliciously designed skill is installed, an attacker could obtain transcripts of speech not intended for Alexa to process, but simply spoken within the device's hearing range. NOTE: The vendor states "Customer trust is important to us and we take security and privacy seriously. We have put mitigations in place for detecting this type of skill behavior and reject or suppress those skills when we do. Customers do not need to take any action for these mitigations to work.

CVSS v3
3.3
EG Score
3.3(medium)
EPSS
61.3%
KEV
Not listed

Published

May 30, 2018

Last Modified

November 21, 2024

References (8)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 43× 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. 2026-07-11 08:24 UTCEPSS rescore
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  1. 2026-06-22 14:23 UTCEPSS rescore
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  44. 2026-05-28 07:41 UTCEG score recompute
  45. 2026-05-28 07:41 UTCGHSA enrichment
  46. 2026-05-27 13:38 UTCEPSS rescore
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  50. 2026-05-26 07:17 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2018-11567?
CVE-2018-11567 is a low vulnerability published on May 30, 2018. Prior to 2018-04-27, the reprompt feature in Amazon Echo devices could be misused by a custom Alexa skill. The reprompt feature is designed so that if Alexa does not receive an input within 8 seconds, the device can speak a reprompt, then wait an additional 8 seconds for input; if the user still…
When was CVE-2018-11567 disclosed?
CVE-2018-11567 was first published in the National Vulnerability Database on May 30, 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-2018-11567 actively exploited?
CVE-2018-11567 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-11567?
CVE-2018-11567 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2018-11567?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-11567, 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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