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TI-2021-03417 Aliases CVE-2021-20117GHSA-x9cp-v5c2-p9c5

Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation…

Priority LOW 29Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation vulnerability which could allow an authenticated, local administrator to run specific executables on the Nessus Agent host. This is different than CVE-2021-20118.

Why it matters now

EPSS 0.00303 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Nessus AgentNessus Agent 8.3.0 and earlier—No fix listedCNA
  • Nessus Agent Vendor— Affected Nessus Agent 8.3.0 and earlier Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tenable:nessus_agent:*:*:*:*:*:*:*:*up to 8.3.0VulnerableTenable
  • cpe:2.3:a:tenable:nessus_agent:*:*:*:*:*:*:*:* Versions up to 8.3.0 Vulnerable ·Tenable

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20117
  2. 2026-10-03 Alias added: GHSA-x9cp-v5c2-p9c5

References

Patch 1

  • TI-2021-02414 CA certificate check bypass with X509_V_FLAG_X509_STRICT CVSS 3.1HIGH 7.4
  • TI-2026-12849 Tenable Agent Path Traversal Leading to Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2025-24922 Local privilege escalation in Tenable Agent CVSS 3.1HIGH 8.8
  • TI-2025-24920 Local privilege escalation in Tenable Agent CVSS 3.1HIGH 8.4
  • TI-2019-12154 In SQLite through 3.29.0, whereLoopAddBtreeIndex in sqlite3.c can crash a browser or… CVSS 3.1MEDIUM 6.5
  • TI-2025-24921 Local privilege escalation in Tenable Agent CVSS 3.1HIGH 7.8
See all 12 →

Sources

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