An unrestricted file upload vulnerability exists in Dell (acquired by Quest) KACE K1000 System Management Appliance version 5.0 - 5.3, 5.4 prior to 5.4.76849, and 5.5 prior to 5.5.90547 in the download_agent.php endpoint. An attacker can upload arbitrary PHP files to a temporary web-accessible directory, which are later executed through inclusion in backend code that loads files under attacker-controlled paths.
Security readout for executives and security teams
This vulnerability lets an unauthenticated remote attacker upload a PHP file to affected Dell/Quest KACE K1000 appliances and have it run on the server. For an exposed appliance, this can mean full compromise of the management system. The bundle does not show CISA KEV listing or confirmed active exploitation. Exposure is highest where legacy KACE K1000 appliances are internet-facing or reachable from untrusted networks. Organizations using KACE only internally still face risk from compromised VPN users, malware footholds, or partner network access. Newer or vendor-supported builds are not shown as affected in the bundle. Prioritize immediately if any affected KACE K1000 appliance is exposed beyond a tightly controlled admin network. This is a remote, unauthenticated code execution issue in an administrative systems-management appliance, which can create broad operational and endpoint-management risk. Mitigation focus: Upgrade affected KACE K1000 systems to 5.4.76849, 5.5.90547, or a later supported release.; Remove direct internet exposure for KACE management interfaces.; Restrict access to trusted admin networks, VPNs, and identity-controlled paths..
Prepared
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · medium confidence lookup
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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.
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.
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
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.
1CVSS vectors
3Timeline events
1ADP providers
4Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total
CVSS vector scores
1 official score
We 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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-306 · source CWE mapping
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.