Is CVE-2018-7830 in the CISA KEV catalog?

No. CVE-2018-7830 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-7830?

CVE-2018-7830 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-7830?

CVE-2018-7830 has an EPSS score of 2.42% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2018-7830?

No published fix for CVE-2018-7830 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2018-7830

HIGHEPSS 82th pctl

7.5

CVSS v3

NVD

Description

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where a denial of service can occur for ~1 minute by sending a specially crafted HTTP request.

CWE-113

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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

2.42%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Exploit1

tenable.com

Vendor Advisory1

schneider-electric.com

Embed a live status badge for CVE-2018-7830

Markdown

[![CVE-2018-7830](https://tridentstack.com/cve/badge/CVE-2018-7830.svg)](https://tridentstack.com/cve/CVE-2018-7830)

HTML

<a href="https://tridentstack.com/cve/CVE-2018-7830"><img src="https://tridentstack.com/cve/badge/CVE-2018-7830.svg" alt="CVE-2018-7830"></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.