Is CVE-2018-4833 in the CISA KEV catalog?

No. CVE-2018-4833 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-4833?

CVE-2018-4833 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2018-4833?

CVE-2018-4833 has an EPSS score of 0.95% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-4833?

Upgrade scalance x200 firmware to 5.2.3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2018-4833

HIGH

8.8

CVSS v3

NVD

Description

A vulnerability has been identified in RFID 181EIP (All versions), RUGGEDCOM Win (V4.4, V4.5, V5.0, and V5.1), SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.3), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.4.1), SCALANCE X-200RNA switch family (All versions < V3.2.6), SCALANCE X-300 switch family (incl. SIPLUS NET variants) (All versions < V4.1.3), SCALANCE X408 (All versions < V4.1.3), SCALANCE X414 (All versions), SIMATIC RF182C (All versions). Unprivileged remote attackers located in the same local network segment (OSI Layer 2) could gain remote code execution on the affected products by sending a specially crafted DHCP response to a client's DHCP request.

CWE-122Heap-based Buffer Overflow CWE-20Improper Input Validation

How to fix

Remediation Available

scalance x200 firmwareNVD

Affected:< 5.2.3Fixed in:5.2.3CVE-2018-4833derived from NVD

scalance x200irt firmwareNVD

Affected:< 5.4.1Fixed in:5.4.1CVE-2018-4833derived 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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.95%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory1

cert-portal.siemens.com

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2024-26256	High	7.8	88%	-	Fix
CVE-2020-25687	Medium	5.9	87%	-	Fix
CVE-2009-3459	High	8.8	86%	KEV	Fix
CVE-2021-21017	High	8.8	86%	KEV	-
CVE-2020-25683	Medium	5.9	86%	-	Fix

Embed a live status badge for CVE-2018-4833

Markdown

[![CVE-2018-4833](https://tridentstack.com/cve/badge/CVE-2018-4833.svg)](https://tridentstack.com/cve/CVE-2018-4833)

HTML

<a href="https://tridentstack.com/cve/CVE-2018-4833"><img src="https://tridentstack.com/cve/badge/CVE-2018-4833.svg" alt="CVE-2018-4833"></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.