CVE-2009-20005InterSystems Caché UtilConfigHome.csp Stack Buffer Overflow
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It affects InterSystems Corporation InterSystems Caché. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 1.69%, higher than 77% of scored CVEs.
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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.
- CVSS
- 9.3 CRITICAL (v4.0, CNA)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
- Weakness (CWE)
- CWE-121
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 1.69% (percentile 77)
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- May 15, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
InterSystems Corporation InterSystems Caché intersystems:cache (from the name) | through 2009.1 | CNA record |
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/intersystems_cache.rbexploit
- https://www.exploit-db.com/exploits/16807exploit
- https://www.juniper.net/us/en/threatlabs/ips-signatures/detail.APP:INTERSYSTEMS-CACHE-OF.htmlthird-party-advisory
- https://www.intersystems.com/products/cache/product
- https://www.vulncheck.com/advisories/intersystems-cache-stack-buffer-overflowthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.