Skip to main content
View

Vulnerability Assessment

Weakness
CWE
CWE-400
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Sign in to read
Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could cause denial of service by exhausting system resources by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.4% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Sign in to check
Technical ContextAI · show details

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation. Affected products include: Siemens Cp1604 Firmware, Siemens Cp1616 Firmware, Siemens Dk Standard Ethernet Controller Firmware, Siemens Ek-Ertec 200 Firmware, Siemens Ek-Ertec 200P Firmware.

Know when Simatic S7 300 Cpu Firmware gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources
Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

Vendor (siemens) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from Vendor (siemens) · only source for this CVE.

CVSS VectorVendor: siemens

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionCVE.org

An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.

Threat Intelligence Overview

EPSS Score
1.4%
Top 31% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 1.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:o:siemens:cp1604_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:cp1616_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:dk_standard_ethernet_controller_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:dk_standard_ethernet_controller_firmware:4.1.1:-:*:*:*:*:*:*
cpe:2.3:o:siemens:dk_standard_ethernet_controller_firmware:4.1.1:p4:*:*:*:*:*:*
cpe:2.3:o:siemens:ek-ertec_200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:ek-ertec_200_firmware:4.5.0:-:*:*:*:*:*:*
cpe:2.3:o:siemens:ek-ertec_200p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x-200irt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200s_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200ecopn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pn\/pn_coupler_6es7158-3ad01-0xa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_312_ifm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_313_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_314_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_314_ifm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_315_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_dp_firmware:*:*:*:*:*:*:*:*
+ 40 more

More in Simatic S7 300 Cpu Firmware

View all
CVE-2016-8673 HIGH
8.8 Nov 23

A vulnerability has been identified in SIMATIC CP 343-1 Advanced (incl. Rated high severity (CVSS 8.8), this vulnerabili
CVE-2016-9158 HIGH
7.5 Dec 17

A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. Rated

CVE-2019-18336 HIGH
7.5 Mar 10

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. Rated high severity (CVSS 7.5), this vulnerabili
CVE-2022-25622 HIGH
7.5 Apr 12

The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP s
CVE-2019-10936 HIGH
7.5 Oct 10

Affected devices improperly handle large amounts of specially crafted UDP packets. Rated high severity (CVSS 7.5), this

CVE-2016-9159 MEDIUM
5.9 Dec 17

A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. Rated

CVE-2016-8672 MEDIUM
5.3 Nov 23

A vulnerability has been identified in SIMATIC CP 343-1 Advanced (incl. Rated medium severity (CVSS 5.3), this vulnerabi

Same weakness CWE-400 – Uncontrolled Resource Consumption

View all
CVE-2023-44487 HIGH POC
7.5
CVE-2021-21341 HIGH POC
7.5
CVE-2022-29885 HIGH POC
7.5
CVE-2026-45498 HIGH POC
7.5
CVE-2016-8610 HIGH
7.5
CVE-2026-28318 HIGH POC
7.5
CVE-2023-38180 HIGH
7.5
CVE-2025-26673 HIGH
7.5

Same technique Denial Of Service

View all
CVE-2015-5119 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2011-0611 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2012-0507 CRITICAL POC
9.8
CVE-2014-1761 HIGH POC
7.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2011-0609 HIGH POC
7.8

References

Advisories & patches
ADVISORY https://cert-portal.siemens.com/productcert/pdf/ssa-349422.pdf REF https://cert-portal.siemens.com/productcert/html/ssa-349422.html

Search Externally

GitHub PoC Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy