Authenticated denial of service via unreleased stream memory
Published Jun 19, 2026 · Updated Jun 19, 2026
Memory leakage in BeginSidebandStream in NI gRPC Device Server 2.17.0 and earlier allows remote authenticated users to exhaust server memory. The endpoint retains allocated memory after its effective lifetime; NI has not disclosed the leaked object or exact triggering message sequence. Low-privileged network access and repeated, high-complexity calls are required, and the bounded consequence is server unavailability from memory exhaustion.
Summary
What happened
Memory leakage in BeginSidebandStream in NI gRPC Device Server 2.17.0 and earlier allows remote authenticated users to exhaust server memory. The endpoint retains allocated memory after its effective lifetime; NI has not disclosed the leaked object or exact triggering message sequence. Low-privileged network access and repeated, high-complexity calls are required, and the bounded consequence is server unavailability from memory exhaustion.
The record
- CVE
- CVE-2026-48141
- Published
- Jun 19, 2026
- Updated
- Jun 19, 2026
- Vendor
- National Instruments
- Product
- InstrumentStudio
- Classifications
- CWE-401, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 19, 2026CVE publishedPublication date reported by the CVE source.
- Jun 19, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=26.3.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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