HOMEVULNERABILITIESCVE-2019-13548
CRITICAL

CVE-2019-13548

CWE-121Published: September 13, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

CODESYS V3 web server, all versions prior to 3.5.14.10, allows an attacker to send specially crafted http or https requests which could cause a stack overflow and create a denial-of-service condition or allow remote code execution.

NVD Source

Technical Analysis

CVE-2019-13548 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

codesys13 product(s)
control for beaglebonecontrol for empc-a\/imx6control for iot2000control for linuxcontrol for pfc100control for pfc200control for raspberry picontrol rtecontrol runtime system toolkitcontrol winembedded target visu toolkithmi+1
Source: NVD CPE · 13 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

News & Research Mentioning CVE-2019-13548

CODESYS in Festo Automation Suite
CISA Alerts· Mar 17, 2026

View CSAF Summary 3. TECHNICAL DETAILS The following versions of CODESYS in Festo Automation Suite are affected: FESTO Software Festo Automation Suite (versions prior to 2.8.0.138) installed with CODESYS Software CODESYS Development System (3.0) vers:all/* FESTO Software Festo Automation Suite (versions prior to 2.8.0.138) installed with CODESYS Software CODESYS Development System (3.5.16.10) vers:all/* FESTO Software Festo Automation Suite (2.8.0.137) installed with CODESYS Software CODESYS Development System (3.0) vers:all/* FESTO Software Festo Automation Suite (2.8.0.137) installed with CODESYS Software CODESYS Development System (3.5.16.10) vers:all/* CVSS Vendor Equipment Vulnerabilities v3 9.8 FESTO, CODESYS CODESYS in Festo Automation Suite D [xlite_meta score:79 src:CISA Alerts xlite_fp:17fca52d9c8a749f3ecbaf32eff92f14e856489804a56a18cc6c0d7f4acd2a9d]

All References (2)

https://www.us-cert.gov/ics/advisories/icsa-19-255-01Mitigation · Patch · Third Party Advisory · US Government Resource
https://www.us-cert.gov/ics/advisories/icsa-19-255-01Mitigation · Patch · Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2019-13548
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-121
CISA KEVNo
Affected1 vendor(s)
PublishedSep 13, 2019

Related CVEs (CWE-121)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2019-13548 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.