Security readout for executives and security teams
Plain-English summary
This CVE describes a remotely reachable buffer overflow in an InterSystems Caché CSP endpoint. A vulnerable exposed system could allow unauthenticated code execution. The sources include public exploit references, but the bundle does not show CISA KEV listing or confirmed active exploitation.
Executive priority
Treat this as urgent for any exposed legacy Caché system. The business risk is remote compromise of a database/application platform, but urgency depends on whether Caché CSP endpoints are reachable and whether supported fixes exist.
Technical view
UtilConfigHome.csp in InterSystems Caché 2009.1 lacks sufficient bounds checking for an oversized HTTP GET argument to a .csp handler. The issue is a stack-based buffer overflow, mapped to CWE-121, with CVSS 4.0 score 9.3. Patch status and affected version range are not defined in the provided sources.
Likely exposure
Exposure is most likely where legacy InterSystems Caché web/CSP interfaces are reachable from untrusted networks. The provided exploit reference path suggests Windows-focused research, but the bundle does not define full platform scope.
Exploitation context
Public exploit references are cited by Rapid7 Metasploit and Exploit-DB, and Juniper has an IPS signature page. However, KEV is false in the bundle, and no cited source here confirms active exploitation.
Researcher notes
Evidence is strong for vulnerability class and public exploit availability, but incomplete for patch status, affected version range, and real-world exploitation. Avoid assuming all Caché versions or platforms are affected without vendor confirmation.
Mitigation direction
- Inventory InterSystems Caché deployments, prioritizing 2009.1 and internet-reachable CSP interfaces.
- Check InterSystems guidance or support for patched or supported upgrade paths.
- Restrict untrusted access to Caché CSP and management endpoints.
- Disable exposed management CSP pages if vendor guidance permits.
- Use IPS/WAF detection where available, including relevant Juniper coverage.
- Retire unsupported legacy Caché instances where patch status cannot be confirmed.
Validation and detection
- Confirm whether any Caché CSP endpoints are externally reachable.
- Check deployed Caché versions against InterSystems support records.
- Review web logs for requests to UtilConfigHome.csp.
- Verify compensating controls restrict access to management CSP pages.
- Confirm IPS/WAF signatures are enabled and monitored where applicable.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-121: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2009-20005 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (4.0)
- Known Exploited
- No
- Published
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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: 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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/intersystems_cache.rbCVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/16807CVE reference, VulnCheck · exploit
- https://www.juniper.net/us/en/threatlabs/ips-signatures/detail.APP:INTERSYSTEMS-CACHE-OF.htmlCVE reference, VulnCheck · third-party-advisory
- https://www.intersystems.com/products/cache/CVE reference, VulnCheck · product
- https://www.vulncheck.com/advisories/intersystems-cache-stack-buffer-overflowCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.