CVE-2009-20005

critical

Description

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.

References

https://www.vulncheck.com/advisories/intersystems-cache-stack-buffer-overflow

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

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

https://www.exploit-db.com/exploits/16807

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/intersystems_cache.rb

Details

Source: Mitre, NVD

Published: 2025-09-16

Updated: 2025-09-17

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.00248