TI-2020-06781 Aliases CVE-2020-8444 GHSA-qjcm-4w5p-gw32

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis…

MEDIUM 47CWE-416Published 2020-01-30 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of ossec-alert formatted msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).

Why it matters now

EPSS 0.02489 84th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ossec:ossec::::::::	2.7 – 3.5.0	Vulnerable	OSSEC

cpe:2.3:a:ossec:ossec:*:*:*:*:*:*:*:* Versions 2.7 – 3.5.0 Vulnerable ·OSSEC

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-8444
2026-10-03 Alias added: GHSA-qjcm-4w5p-gw32

References

Exploit 1

https://github.com/ossec/ossec-hids/issues/1817

Advisory 3

TI-2020-06780 In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis… CVSS 3.1CRITICAL 9.8
TI-2020-06784 In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis… CVSS 3.1CRITICAL 9.8
TI-2020-06782 In OSSEC-HIDS 2.7 through 3.5.0, the OS_CleanMSG function in ossec-analysisd doesn't… CVSS 3.1CRITICAL 9.8
TI-2020-06779 In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis… CVSS 3.1HIGH 8.8
TI-2014-04316 host-deny.sh in OSSEC before 2.8.1 writes to temporary files with predictable filenames… CVSS 2.0HIGH 7.2
TI-2021-09320 An issue was discovered in OSSEC 3.6.0. CVSS 3.1HIGH 7.5

See all 10 →

Sources

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