CVE & CISA-KEV Catalog

CVE-2021-44695

MEDIUM

4.9

CVSS v3

Description

Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.

CWE-1286 CWE-20Improper Input Validation

How to fix

Remediation Available

simatic s7-1200 cpu 1211c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1212c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1212fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1214 fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1214c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1214fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1215 fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1215c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1215fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 1217c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1211c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1212c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1212fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1214c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1214fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1215c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1215fc firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1200 cpu 12 1217c firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1507s f firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1507s firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1508s f firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1508s firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1510sp-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1510sp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511-1 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511c-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511c firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511f-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511f-1 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511t-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1511tf-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1512c-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1512c firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1512sp-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1512spf-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1513-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1513-1 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1513f-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1513f-1 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1513r-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1515-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1515-2 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 151511c-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 151511f-1 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1515f-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1515f-2 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1515r-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1515t-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1515tf-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516-3 dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516-3 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516-3 pn\/dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516-3 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516f-3 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516f-3 pn\/dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516pro-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516pro f firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516t-3 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1516tf-3 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1517-3 dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1517-3 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1517-3 pn\/dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1517-3 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1517f-3 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1517f-3 pn\/dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1517tf-3 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518-4 dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518-4 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518-4 pn\/dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518-4 pn\/dp mfp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518-4 pn firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518f-4 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518f-4 pn\/dp firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518hf-4 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518t-4 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 1518tf-4 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 15pro-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu 15prof-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu cpu 1513pro-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-1500 cpu cpu 1513prof-2 firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

simatic s7-plcsim advanced firmwareNVD

Affected:< 5.0Fixed in:5.0CVE-2021-44695derived from NVD

siplus et 200sp cp 1542sp-1 irc tx rail firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

siplus et 200sp cp 1543sp-1 isec firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

siplus et 200sp cp 1543sp-1 isec tx rail firmwareNVD

Affected:< 3.0.1Fixed in:3.0.1CVE-2021-44695derived from NVD

siplus s7-1200 cp 1243-1 firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived from NVD

siplus s7-1200 cp 1243-1 rail firmwareNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-44695derived 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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.72%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Patch1

cert-portal.siemens.com

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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.