CVE & CISA-KEV Catalog

CVE-2019-19281

HIGHEPSS 73th pctl
7.5
CVSS v3
NVD

Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.

CWE-400Resource Exhaustion

How to fix

Remediation Available
simatic et 200sp open controller cpu 1515sp pc2 firmwareNVD
Affected:>= 2.5, < 20.8Fixed in:20.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1507s f firmwareNVD
Affected:>= 2.5, < 20.8Fixed in:20.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1507s firmwareNVD
Affected:>= 2.5, < 20.8Fixed in:20.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1508s f firmwareNVD
Affected:>= 2.5, < 20.8Fixed in:20.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1508s firmwareNVD
Affected:>= 2.5, < 20.8Fixed in:20.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1511-1 pn firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1513-1 pn firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1515-2 pn firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1516-3 dp firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1516-3 pn firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1517-3 dp firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1517-3 pn firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1518-4 dp firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived from NVD
simatic s7-1500 cpu 1518-4 pn firmwareNVD
Affected:>= 2.5, < 2.8Fixed in:2.8CVE-2019-19281derived 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
AvailabilityHigh

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

Exploit Intelligence

1.64%probability of exploitation in 30 days
73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Vendor Advisory1
Other references1

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.