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CVE-2021-38365: Winner (aka ToneWinner) desktop speakers through 2021-08-09 allow remote attackers to recover speech signal...

Winner (aka ToneWinner) desktop speakers through 2021-08-09 allow remote attackers to recover speech signals from the power-indicator LED via a telescope and an electro-optical sensor, aka a "Glowworm" attack.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This CVE describes a side-channel privacy risk: certain Winner/ToneWinner desktop speakers through 2021-08-09 may leak nearby speech through tiny brightness changes in the power LED. An observer with optical equipment could potentially reconstruct speech without network access. Business risk is highest in rooms where sensitive conversations occur and speaker LEDs are externally visible. Exposure appears limited to organizations using affected Winner/ToneWinner desktop speakers in sensitive rooms where the power LED has clear line-of-sight to an external observer. Treat this as a targeted privacy exposure, not a broad enterprise compromise risk. Prioritize executive rooms, boardrooms, labs, and legal or M&A spaces where confidential speech matters and optical sightlines exist. Mitigation focus: Inventory Winner/ToneWinner desktop speakers in sensitive meeting areas.; Check vendor guidance before applying hardware, firmware, or operational changes.; Remove affected speakers from rooms used for confidential discussions..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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3Timeline events
1ADP providers
2Source links

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