Is CVE-2017-12741 in the CISA KEV catalog?

No. CVE-2017-12741 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-12741?

CVE-2017-12741 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-12741?

CVE-2017-12741 has an EPSS score of 3.31% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-12741?

Upgrade ek-ertec 200p firmware to 4.5 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2017-12741

HIGHEPSS 87th pctl

7.5

CVSS v3

NVD

Description

Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.

CWE-400Resource Exhaustion

How to fix

Remediation Available

ek-ertec 200p firmwareNVD

Affected:< 4.5Fixed in:4.5CVE-2017-12741derived from NVD

simatic s7-1500 firmwareNVD

Affected:< 2.0Fixed in:2.0CVE-2017-12741derived from NVD

simatic s7-200 firmwareNVD

Affected:< 2.03.01Fixed in:2.03.01CVE-2017-12741derived from NVD

simatic s7-400h v6 firmwareNVD

Affected:< 6.0.8Fixed in:6.0.8CVE-2017-12741derived from NVD

simatic s7-400pn v6 firmwareNVD

Affected:< 6.0.6Fixed in:6.0.6CVE-2017-12741derived 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

3.31%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Other references7

Related Vulnerabilities

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

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	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 2026-05-13.