CVE-2009-20005 InterSystems Caché UtilConfigHome.csp Stack Buffer Overflow
A stack buffer overflow in InterSystems Caché allows remote attackers to execute arbitrary code via a crafted HTTP GET request.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-20005?
CVE-2009-20005 is a critical memory corruption vulnerability in InterSystems Caché, published on 16 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-121
Which versions are affected by CVE-2009-20005?
How do I fix CVE-2009-20005?
No fix has been published for CVE-2009-20005 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-20005 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-20005 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-3q48-rvhc-r6w6.