How severe is CVE-2023-26999?

CVE-2023-26999 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-2023-26999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26999?

CVE-2023-26999 affects Netscout Ngeniusone. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26999?

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.

Does CVE-2023-26999 have an EU (EUVD) identifier?

Yes. CVE-2023-26999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-30789.

When was CVE-2023-26999 published?

CVE-2023-26999 was published on 2024-01-09 and last updated on 2026-07-05.

CVE-2023-26999

CVE-2023-26999 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. The underlying weakness is classified as CWE-611.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-30789
Weakness: CWE-611
Affected product: Netscout Ngeniusone
Published: 2024-01-09
Last modified: 2026-07-05

Description

An issue found in NetScout nGeniusOne v.6.3.4 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted file.

Frequently asked questions

What is CVE-2023-26999?: An issue found in NetScout nGeniusOne v.6.3.4 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted file.
How severe is CVE-2023-26999?: CVE-2023-26999 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-2023-26999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26999?: CVE-2023-26999 affects Netscout Ngeniusone. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26999?: 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.
Does CVE-2023-26999 have an EU (EUVD) identifier?: Yes. CVE-2023-26999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-30789.
When was CVE-2023-26999 published?: CVE-2023-26999 was published on 2024-01-09 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:netscout:ngeniusone:6.3.4:-:*:*:*:*:*:*

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