TI-2009-04915 Aliases CVE-2009-20005 GHSA-3q48-rvhc-r6w6

InterSystems Caché UtilConfigHome.csp Stack Buffer Overflow

HIGH 81CWE-121Published 2025-09-16 · Updated 2026-05-15

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

A stack-based buffer overflow exists in the UtilConfigHome.csp endpoint of InterSystems Caché 2009.1. The vulnerability is triggered by sending a specially crafted HTTP GET request containing an oversized argument to the .csp handler. Due to insufficient bounds checking, the input overflows a stack buffer, allowing an attacker to overwrite control structures and execute arbitrary code. It is unknown if this vulnerability was patched and an affected version range remains undefined.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.02418 84th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
InterSystems	InterSystems Caché	up to 2009.1	—	No fix listed	CNA

InterSystems Caché VendorInterSystems Affected up to 2009.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2009-20005
2026-10-03 Alias added: GHSA-3q48-rvhc-r6w6

References

Exploit 2

Advisory 1

https://www.juniper.net/us/en/threatlabs/ips-signatures/detail.APP:INTERSYSTEMS-CACHE-OF.html

Other 1

https://www.intersystems.com/products/cache/

TI-2003-01233 Unspecified vulnerability in the Cache' Server Page (CSP) implementation in InterSystems… CVSS 2.0HIGH 10.0
TI-2026-79512 Cleartext transmission in InterSystems IRIS for Health exposes data CVSS 4.0CRITICAL 9.2
TI-2003-00468 Caché Database 5.x installs /cachesys/bin/cache with world-writable permissions, which… CVSS 2.0HIGH 7.2
TI-2003-00469 Caché Database 5.x installs the /cachesys/csp directory with insecure permissions, which… CVSS 2.0HIGH 7.2
TI-2018-12258 Intersystems Cache 2017.2.2.865.0 allows XXE. CVSS 3.0MEDIUM 6.4
TI-2018-12256 Intersystems Cache 2017.2.2.865.0 allows XSS. CVSS 3.0MEDIUM 6.1

See all 11 →

Sources

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