TI-2020-04702 Aliases CVE-2020-5774 GHSA-f37f-gf89-7rm9

Insufficient session expiration in Tenable Nessus

LOW 31CWE-613Published 2020-08-21 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-613.

Summary

Nessus versions 8.11.0 and earlier were found to maintain sessions longer than the permitted period in certain scenarios. The lack of proper session expiration could allow attackers with local access to login into an existing browser session.

Why it matters now

EPSS 0.00347 28th percentileScored 2026-11-07

Fix Fixed Tenable Nessus: 8.11.1

SSVC decision points

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	Tenable Nessus	before 8.11.1	8.11.1	Patch available	CNA

Tenable Nessus Vendor— Affected before 8.11.1 Fixed in 8.11.1 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:tenable:nessus::::::::	up to 8.11.0	Vulnerable	Tenable

cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:* Versions up to 8.11.0 Vulnerable ·Tenable

Remediation

Fix · CNA Tenable Nessus Fixed in 8.11.1

Timeline

2026-10-02 Threatist record created from CVE-2020-5774
2026-10-03 Alias added: GHSA-f37f-gf89-7rm9

References

Patch 1

https://www.tenable.com/security/tns-2020-06

TI-2022-00687 Infinite loop in BN_mod_sqrt() reachable when parsing certificates CVSS 3.1HIGH 7.5
TI-2021-20962 In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the… CVSS 3.1HIGH 8.8
TI-2021-21076 In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. CVSS 3.1HIGH 8.1
TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
TI-2021-02414 CA certificate check bypass with X509_V_FLAG_X509_STRICT CVSS 3.1HIGH 7.4
TI-2022-07855 Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for… CVSS 3.1CRITICAL 9.8

See all 67 →

Sources

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