Service interrupt via concurrent HTTP requests
Published Aug 17, 2026 · Updated Aug 17, 2026
Denial of service in certain HP Smart Tank All-in-One printers allows remote attackers to interrupt service via concurrent HTTP requests. The vendor has not disclosed a narrower code locus; public records state only that simultaneous HTTP requests trigger uncontrolled resource consumption in the printer's embedded HTTP service until the device becomes unavailable. No authentication or user interaction is required, and the published impact is limited to service interruption rather than data access, configuration changes, or code execution.
Summary
What happened
Denial of service in certain HP Smart Tank All-in-One printers allows remote attackers to interrupt service via concurrent HTTP requests. The vendor has not disclosed a narrower code locus; public records state only that simultaneous HTTP requests trigger uncontrolled resource consumption in the printer's embedded HTTP service until the device becomes unavailable. No authentication or user interaction is required, and the published impact is limited to service interruption rather than data access, configuration changes, or code execution.
The record
- CVE
- CVE-2026-17639
- Published
- Aug 17, 2026
- Updated
- Aug 17, 2026
- Vendor
- Plantronics
- Product
- HP Smart Tank 599 All-in-One Printer
- Classifications
- CWE-400, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 17, 2026CVE publishedPublication date reported by the CVE source.
- Aug 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <<001.2630C
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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