Out-of-bounds Read in Ni Grpc-Device
CVE-2026-48138
There is an out-of-bounds read vulnerability in the NI grpc-device streaming API due to a missing bounds check that may result in a denial of service. Successful exploitation requires an attacker to supply a specially crafted write request. This affects NI grpc-device 2.17.0 and prior versions.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Ni Grpc-Device — versions 0
- Ni Instrumentstudio — versions 2026, 0
- Ni Grpc Device Server
Weakness classification (CWE)
References
- www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-s… (vendor-advisory, Vendor Advisory)
- github.com/ni/grpc-device/security/advisories/GHSA-8rjh-429j-f6gw (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-48138?
- CVE-2026-48138 is a high-severity vulnerability in Ni Grpc-Device, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-06-19.
- How severe is CVE-2026-48138?
- High severity. CVSS v3 base score is 7.5 out of 10.