Is CVE-2018-13815 in the CISA KEV catalog?

No. CVE-2018-13815 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-13815?

CVE-2018-13815 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-13815?

CVE-2018-13815 has an EPSS score of 1.80% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-13815?

Upgrade simatic s7-1500 firmware to 2.6 or later.

CVE & CISA-KEV Catalog

CVE-2018-13815

HIGHEPSS 76th pctl

7.5

CVSS v3

NVD

Description

A vulnerability has been identified in SIMATIC S7-1200 (All versions), SIMATIC S7-1500 (All Versions < V2.6). An attacker could exhaust the available connection pool of an affected device by opening a sufficient number of connections to the device. Successful exploitation requires an attacker to be able to send packets to port 102/tcp of the affected device. No user interaction and no user privileges are required to exploit the vulnerability. The vulnerability, if exploited, could cause a Denial-of-Service condition impacting the availability of the system. At the time of advisory publication no public exploitation of this vulnerability was known.

CWE-410 CWE-400Resource Exhaustion

How to fix

Remediation Available

simatic s7-1500 firmwareNVD

Affected:< 2.6Fixed in:2.6CVE-2018-13815derived 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.80%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Vendor Advisory1

cert-portal.siemens.com

Third-Party Advisory1

securityfocus.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.