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TI-2023-05175 Aliases CVE-2023-5623GHSA-f5w9-q8fj-h9jj

Privilege escalation in Tenable Nessus Network Monitor

Priority LOW 35CWE-276Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-94.

Summary

NNM failed to properly set ACLs on its installation directory, which could allow a low privileged user to run arbitrary code with SYSTEM privileges where NNM is installed to a non-standard location

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00161 5th percentileScored 2026-11-07
Fix Fixed Nessus Network Monitor (Tenable): 6.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TenableNessus Network Monitorbefore 6.3.06.3.0Patch availableCNA
  • Nessus Network Monitor VendorTenable Affected before 6.3.0 Fixed in 6.3.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tenable:nessus_network_monitor:*:*:*:*:*:*:*:*before 6.3.0VulnerableTenable
  • cpe:2.3:a:tenable:nessus_network_monitor:*:*:*:*:*:*:*:* Versions before 6.3.0 Vulnerable ·Tenable

Remediation

  • Fix · CNA Nessus Network Monitor (Tenable) Fixed in 6.3.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Tenable Nessus Network Monitor 6.3.0

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2023-05174 Privilege escalation in Tenable Nessus Network MonitorPriority MEDIUM 40
    • TI-2023-05176 Blind SQL injection in Tenable Nessus Network MonitorPriority LOW 34
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-5623
  2. 2026-10-03 Alias added: GHSA-f5w9-q8fj-h9jj

References

Patch 1

  • TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
  • TI-2021-06204 Integer overflow in CipherUpdate CVSS 3.1HIGH 7.5
  • TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
  • TI-2021-02646 Read buffer overruns processing ASN.1 strings CVSS 3.1HIGH 7.4
  • TI-2021-02414 CA certificate check bypass with X509_V_FLAG_X509_STRICT CVSS 3.1HIGH 7.4
  • TI-2023-05174 Privilege escalation in Tenable Nessus Network Monitor CVSS 3.1HIGH 8.8
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences