How severe is CVE-2023-5622?

CVE-2023-5622 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-5622 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5622?

CVE-2023-5622 affects Tenable Nessus Network Monitor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5622?

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.

When was CVE-2023-5622 published?

CVE-2023-5622 was published on 2023-10-26 and last updated on 2026-06-17.

CVE-2023-5622

CVE-2023-5622 is a high-severity vulnerability in Tenable Nessus Network Monitor with a CVSS 3.x base score of 7.1. 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-269.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Tenable Nessus Network Monitor
Published: 2023-10-26
Last modified: 2026-06-17

Description

Under certain conditions, Nessus Network Monitor could allow a low privileged user to escalate privileges to NT AUTHORITY\SYSTEM on Windows hosts by replacing a specially crafted file.

Frequently asked questions

What is CVE-2023-5622?: Under certain conditions, Nessus Network Monitor could allow a low privileged user to escalate privileges to NT AUTHORITY\SYSTEM on Windows hosts by replacing a specially crafted file.
How severe is CVE-2023-5622?: CVE-2023-5622 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-5622 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5622?: CVE-2023-5622 affects Tenable Nessus Network Monitor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5622?: 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.
When was CVE-2023-5622 published?: CVE-2023-5622 was published on 2023-10-26 and last updated on 2026-06-17.

References

https://www.tenable.com/security/tns-2023-34

Affected products (1)

cpe:2.3:a:tenable:nessus_network_monitor:*:*:*:*:*:windows:*:*

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