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Vulnerabilities

Vulnerability · CVE-2009-20005

A stack-based buffer overflow exists in the UtilConfigHome.csp endpoint of InterSystems Caché 2009.1.

Published Sep 16, 2025 · catalog updated May 15, 2026 · InterSystems Corporation InterSystems Caché

Last checked Oct 23, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2009-20005. EPSS is 1.69%. Act only if a listed version of InterSystems Corporation InterSystems Caché is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.69%
Remediation
Vendor / distro source
Affected products
vendor InterSystems Corporation InterSystems Caché 0 ≤2009.1

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor InterSystems Corporation InterSystems Caché 0 ≤2009.10 ≤2009.1

How to fix CVE-2009-20005

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2009-20005. EPSS is 1.69%. Act only if a listed version of InterSystems Corporation InterSystems Caché is installed.

Which versions are affected?

Compare what you have installed with InterSystems Corporation InterSystems Caché 0 ≤2009.1 0 ≤2009.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.69%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 16, 2025 · EUVD

    Detected

    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 unkno

  2. May 15, 2026 · EUVD

    Updated

    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 unkno

Sources

  • CVE.orgVulnerability recordCVE-2009-20005

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2009-20005

    30-day exploitation probability 1.69%

    first.org
  • EUVDVulnerability recordEUVD-2009-5127

    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 inpu

    euvd.enisa.europa.eu
  • Metasploit ModulesPublic exploit moduleexploit_windows/http/intersystems_cache

    Public module reference (great). Module source is not copied into this catalog.

    rapid7.com

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Metasploit ModulesOct 23, 2026
  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 22, 2026
  • EUVDOct 22, 2026