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.
SeverityCritical
CVSS9.3
Exploit probability—
ProductInterSystems Caché
PublishedSep 16, 2025
First seenSep 16, 2025
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| InterSystems Corporation InterSystems Caché | v ≤ 2009.1 | — |
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