{"cve":"CVE-2019-13927","nvd":{"published":"2019-12-12T14:15:14.897","modified":"2026-06-17T02:17:25.873","status":"Modified","description":"A vulnerability has been identified in Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D with Desigo PX Web modules PXA40-W0, PXA40-W1, PXA40-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U with Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC22.1-E.D, PXC36-E.D, PXC36.1-E.D with activated web server (All firmware versions < V6.00.320). The device contains a vulnerability that could allow an attacker to cause a denial of service condition on the device's web server by sending a specially crafted HTTP message to the web server port (tcp/80). The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device's web service. While the device itself stays operational, the web server responds with HTTP status code 404 (Not found) to any further request. A reboot is required to recover the web interface. At the time of advisory publication no public exploitation of this security vulnerability was known.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-668","CWE-472"],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-898181.pdf","https://cert-portal.siemens.com/productcert/pdf/ssa-898181.pdf"],"products":["siemens:pxa30-w0_firmware","siemens:pxa30-w1_firmware","siemens:pxa30-w2_firmware","siemens:pxa40-w0_firmware","siemens:pxa40-w1_firmware","siemens:pxa40-w2_firmware","siemens:pxc00-e.d_firmware","siemens:pxc00-u_firmware","siemens:pxc100-e.d_firmware","siemens:pxc128-u_firmware","siemens:pxc200-e.d_firmware","siemens:pxc22.1-e.d_firmware","siemens:pxc36-e.d_firmware","siemens:pxc36.1-e.d_firmware","siemens:pxc50-e.d_firmware","siemens:pxc64-u_firmware"],"source":"nvd","synced_at":"2026-10-19T20:59:27.069234358+00:00"},"epss":{"cve":"CVE-2019-13927","score":0.01675,"percentile":0.76865,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}