Is CVE-2022-27640 in the CISA KEV catalog?

No. CVE-2022-27640 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-27640?

CVE-2022-27640 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2022-27640?

CVE-2022-27640 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-27640?

Upgrade simatic cp 442-1 rna firmware to 1.5.18 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-27640

MEDIUM

6.5

CVSS v3

NVD

Description

A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions < V1.5.18), SIMATIC CP 443-1 RNA (All versions < V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.

CWE-400Resource Exhaustion

How to fix

Remediation Available

simatic cp 442-1 rna firmwareNVD

Affected:< 1.5.18Fixed in:1.5.18CVE-2022-27640derived from NVD

simatic cp 443-1 rna firmwareNVD

Affected:< 1.5.18Fixed in:1.5.18CVE-2022-27640derived 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 VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Patch1

cert-portal.siemens.com

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

Embed a live status badge for CVE-2022-27640

Markdown

[![CVE-2022-27640](https://tridentstack.com/cve/badge/CVE-2022-27640.svg)](https://tridentstack.com/cve/CVE-2022-27640)

HTML

<a href="https://tridentstack.com/cve/CVE-2022-27640"><img src="https://tridentstack.com/cve/badge/CVE-2022-27640.svg" alt="CVE-2022-27640"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.