Security readout for executives and security teams
Plain-English summary
This ColdFusion issue can let an attacker gain higher privileges by abusing how Windows loads DLL files. It affects Adobe ColdFusion 2016 update 15 and earlier, and ColdFusion 2018 update 9 and earlier. It is serious, but the provided evidence describes local exploitation requiring user interaction, not a remote internet-facing takeover.
Executive priority
Treat this as a high-priority maintenance and hardening item for legacy ColdFusion systems. It is not documented here as actively exploited, but privilege escalation on application servers can materially increase breach impact if an attacker obtains local execution.
Technical view
CVE-2020-9673 is a CWE-426 DLL search-order hijacking flaw in Adobe ColdFusion. CVSS 3.1 is 7.8 high with local attack vector, low complexity, no privileges required, required user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to environments running Adobe ColdFusion 2016 update 15 or earlier, or ColdFusion 2018 update 9 or earlier. Risk is highest on Windows hosts where attackers can influence local file placement or user-driven execution paths.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates local exploitation with required user interaction, not a network-only attack path. Successful exploitation could result in privilege escalation.
Researcher notes
Key constraints are AV:L and UI:R, so validation should focus on affected host presence, update level, and local DLL loading controls. The provided sources do not include exploit details or a confirmed fixed update number, so rely on Adobe APSB20-43 for remediation specifics.
Mitigation direction
- Inventory Adobe ColdFusion 2016 and 2018 deployments and record exact update levels.
- Review Adobe APSB20-43 and apply the vendor-recommended ColdFusion security updates.
- Prioritize systems running ColdFusion 2016 update 15 or earlier.
- Prioritize systems running ColdFusion 2018 update 9 or earlier.
- Restrict local write access around application, service, and execution directories.
Validation and detection
- Confirm installed ColdFusion major version and update level on each server.
- Compare findings against the affected versions listed for CVE-2020-9673.
- Verify remediation against Adobe APSB20-43 vendor guidance.
- Review endpoint telemetry for suspicious DLL loading near ColdFusion processes.
- Check change records for any legacy ColdFusion hosts missed by inventory.
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-426: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-9673 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/coldfusion/apsb20-43.htmlCVE reference · x_refsource_CONFIRM
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.
Untrusted Search Path
Untrusted Search Path represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.