How severe is CVE-2026-48139?

CVE-2026-48139 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-48139 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48139?

CVE-2026-48139 primarily affects Ni Instrumentstudio. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-48139?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-48139 have an EU (EUVD) identifier?

Yes. CVE-2026-48139 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38027.

When was CVE-2026-48139 published?

CVE-2026-48139 was published on 2026-06-19 and last updated on 2026-06-25.

CVE-2026-48139

CVE-2026-48139 is a high-severity vulnerability in Ni Instrumentstudio with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38027
Weakness: CWE-476
Affected product: Ni Instrumentstudio
Published: 2026-06-19
Last modified: 2026-06-25

Description

There is a NULL pointer dereference vulnerability in NI grpc-device in the data moniker service that may allow an attacker to cause a denial of service by triggering a crash. Successful exploitation requires an attacker to provide an unknown value to the data moniker service. This affects NI grpc-device 2.17.0 and prior versions.

Frequently asked questions

What is CVE-2026-48139?: There is a NULL pointer dereference vulnerability in NI grpc-device in the data moniker service that may allow an attacker to cause a denial of service by triggering a crash. Successful exploitation requires an attacker to provide an unknown value to the data moniker service. This affects NI grpc-device 2.17.0 and prior versions.
How severe is CVE-2026-48139?: CVE-2026-48139 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-48139 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-48139?: CVE-2026-48139 primarily affects Ni Instrumentstudio. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-48139?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-48139 have an EU (EUVD) identifier?: Yes. CVE-2026-48139 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38027.
When was CVE-2026-48139 published?: CVE-2026-48139 was published on 2026-06-19 and last updated on 2026-06-25.

References

Affected products (4)

cpe:2.3:a:ni:instrumentstudio:*:*:*:*:*:*:*:*
cpe:2.3:a:ni:instrumentstudio:2026:q1:*:*:*:*:*:*
cpe:2.3:a:ni:instrumentstudio:2026:q2:*:*:*:*:*:*
cpe:2.3:a:ni:ni_grpc_device_server:*:*:*:*:*:*:*:*

More vulnerabilities in Ni Instrumentstudio

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CVE-2026-48137 — Critical (CVSS 9.1): There is an untrusted pointer dereference vulnerability in the NI grpc-device sideband streaming API that may allow an…
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CVE-2026-48140 — Medium (CVSS 6.5): There is an unchecked enum cast vulnerability in NI grpc-device BeginSidebandStream that may allow an attacker to…
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CVE-2026-9143 — Low (CVSS 3.7): There is an incorrect conversion between numeric types vulnerability in NI grpc-device due to missing range checks…

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