How severe is CVE-2021-45983?

CVE-2021-45983 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-45983 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45983?

CVE-2021-45983 affects Netscout Ngeniusone. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45983?

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

When was CVE-2021-45983 published?

CVE-2021-45983 was published on 2022-06-02 and last updated on 2026-06-17.

CVE-2021-45983

CVE-2021-45983 is a critical-severity vulnerability in Netscout Ngeniusone with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netscout Ngeniusone
Published: 2022-06-02
Last modified: 2026-06-17

Description

NetScout nGeniusONE 6.3.2 allows Java RMI Code Execution.

Frequently asked questions

What is CVE-2021-45983?: NetScout nGeniusONE 6.3.2 allows Java RMI Code Execution.
How severe is CVE-2021-45983?: CVE-2021-45983 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-45983 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45983?: CVE-2021-45983 affects Netscout Ngeniusone. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45983?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-45983 published?: CVE-2021-45983 was published on 2022-06-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netscout:ngeniusone:6.3.2:-:*:*:*:*:*:*

More vulnerabilities in Netscout Ngeniusone

CVE-2025-32985 — Critical (CVSS 9.8): NETSCOUT nGeniusONE before 6.4.0 b2350 has Hardcoded Credentials that can be obtained from JAR files.
CVE-2023-26999 — Critical (CVSS 9.8): An issue found in NetScout nGeniusOne v.6.3.4 allows a remote attacker to execute arbitrary code and cause a denial of…
CVE-2021-45981 — Critical (CVSS 9.8): NetScout nGeniusONE 6.3.2 allows an XML External Entity (XXE) attack.
CVE-2022-44715 — High (CVSS 8.8): Improper File Permissions in NetScout nGeniusONE 6.3.2 build 904 allows authenticated remote users to gain permissions…
CVE-2021-45982 — High (CVSS 8.8): NetScout nGeniusONE 6.3.2 allows Arbitrary File Upload by a privileged user.
CVE-2025-32986 — High (CVSS 7.5): NETSCOUT nGeniusONE before 6.4.0 b2350 has a Sensitive File Accessible Without Proper Authentication to an endpoint.

All CVEs affecting Netscout Ngeniusone →