CVE & CISA-KEV Catalog

CVE-2019-13940

MEDIUMEPSS 74th pctl
5.3
CVSS v3
NVD

Description

A vulnerability has been identified in SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200S IM151-8F PN/DP CPU (All versions < V3.X.17), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.1), SIMATIC S7-300 CPU 314C-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315F-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315T-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317F-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317T-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317TF-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 319-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 319F-3 PN/DP (All versions < V3.X.17), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX 2010 (All versions), SIMATIC WinAC RTX F 2010 (All versions), SIPLUS ET 200S IM151-8 PN/DP CPU (All versions < V3.X.17), SIPLUS ET 200S IM151-8F PN/DP CPU (All versions < V3.X.17), SIPLUS S7-300 CPU 314C-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 315-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 315F-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 317-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 317F-2 PN/DP (All versions < V3.X.17). Affected devices contain a vulnerability that could cause a denial of service condition of the web server by sending specially crafted HTTP requests to ports 80/tcp and 443/tcp. Beyond the web service, no other functions or interfaces are affected by the denial of service condition.

CWE-400Resource Exhaustion

How to fix

Remediation Available
s7-1200 cpu 1211c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
s7-1200 cpu 1212c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
s7-1200 cpu 1212fc firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
s7-1200 cpu 1214c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
s7-1200 cpu 1214fc firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
s7-1200 cpu 1215c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
s7-1200 cpu 1215fc firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
s7-1200 cpu 1217c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
siplus cpu 1211c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
siplus cpu 1212c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
siplus cpu 1215c firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD
siplus s7-1200 firmwareNVD
Affected:< 4.1Fixed in:4.1CVE-2019-13940derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

1.70%probability of exploitation in 30 days
74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-44487High7.5100%KEVFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2011-3192High7.899%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2024-25617Medium5.389%-Fix
CVE-2018-1000115High7.589%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.