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Fencer Intel
medium 5.3

CVE-2019-13927 json

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 mod…

published 6y ago modified 4mo ago also EUVD-2019-5197

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

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.

Patch / fix

  • siemens pxc00-e.d_firmware 6.00.320
  • siemens pxc50-e.d_firmware 6.00.320
  • siemens pxc100-e.d_firmware 6.00.320
  • siemens pxc200-e.d_firmware 6.00.320
  • siemens pxa40-w0_firmware 6.00.320
  • siemens pxa40-w1_firmware 6.00.320
  • siemens pxa40-w2_firmware 6.00.320
  • siemens pxc00-u_firmware 6.00.320
  • siemens pxc64-u_firmware 6.00.320
  • siemens pxc128-u_firmware 6.00.320
  • siemens pxa30-w0_firmware 6.00.320
  • siemens pxa30-w1_firmware 6.00.320
  • siemens pxa30-w2_firmware 6.00.320
  • siemens pxc22.1-e.d_firmware 6.00.320
  • siemens pxc36-e.d_firmware 6.00.320
  • siemens pxc36.1-e.d_firmware 6.00.320

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-19-318-03 updated cvss 5.3

Siemens Desigo PX Devices

  • Siemens Desigo PX automation controllers PXC00-E.D PXC50-E.D Siemens Desigo PX automation controllers PXC00-U PXC64-U Siemens Desigo PX automation controllers PXC22.1-E.D PXC36-E.D
    affected: vendor fix, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.68% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Siemens AG 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
  • Siemens AG Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U with Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2
  • Siemens AG Desigo PX automation controllers PXC22.1-E.D, PXC36-E.D, PXC36.1-E.D with activated web server

Classification

Weakness
  • CWE-472 External Control of Assumed-Immutable Web Parameter
  • CWE-668 Exposure of Resource to Wrong Sphere

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.