Critical severity · published Jun 19, 2026
CVE-2026-48137
Untrusted pointer dereference in NI grpc-device sideband streaming API
9.8
CVSS
0.8%
EPSS
No
On KEV
Description
There is an untrusted pointer dereference vulnerability in the NI grpc-device sideband streaming API that may allow an attacker to cause an arbitrary memory dereference, potentially resulting in remote code execution. Successful exploitation requires an attacker to supply a specially crafted Moniker protobuf message. This affects NI grpc-device 2.17.0 and prior versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
InstrumentStudio · NI
through 26.3.0 · source: vendor, NVD
GR
grpc-device · NI
through 2.17.0 · source: vendor
NG
NI Grpc Device Server · NI
before 2.18.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48137
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48137
Vendor Advisory
https://github.com/ni/grpc-device/security/advisories/GHSA-ww59-ghm9-mm63
Vendor Advisory
https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/multiple-vulnerabilities-in-ni-grpc-device-server.html
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