Schneider Electric Wonderware Information Server (WIS) Portal 4.0 SP1 through 5.5 allows remote attackers to read arbitrary files or cause a denial of service via an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.
Conclusion & alert: CVE-2014-5398 is rated Low Risk (27.4/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.31%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-01 | 0.10% | 0.31% | +0.21% |
| 2 | 2025-03-17 | 0.16% | 0.10% | -0.06% |
| 3 | 2023-03-07 | — | 0.16% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
: Per: https://ics-cert.us-cert.gov/advisories/ICSA-14-238-02 "WIS may allow access to local resources (files and internal resources) via unsafe parsing of XML external entities. By using specially crafted XML files, an attacker can cause these products to send the contents of local remote resources to the attacker’s server or cause a denial of service of the system. This vulnerability is not exploitable remotely and cannot be exploited without user interaction. The exploit is only triggered when a local user runs the vulnerable application and loads the malformed XML files."
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| invensys | wonderware_information_server | 4.0 | cpe:2.3:a:invensys:wonderware_information_server:4.0:sp1:*:*:*:*:*:* |
| invensys | wonderware_information_server | 4.0 | cpe:2.3:a:invensys:wonderware_information_server:4.0:sp1:*:*:portal:*:*:* |
| invensys | wonderware_information_server | 4.5 | cpe:2.3:a:invensys:wonderware_information_server:4.5:-:portal:*:*:*:*:* |
| invensys | wonderware_information_server | 5.0 | cpe:2.3:a:invensys:wonderware_information_server:5.0:-:portal:*:*:*:*:* |
| invensys | wonderware_information_server | 5.5 | cpe:2.3:a:invensys:wonderware_information_server:5.5:*:*:*:portal:*:*:* |