Is CVE-2018-15454 in the CISA KEV catalog?

No. CVE-2018-15454 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-15454?

CVE-2018-15454 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2018-15454?

CVE-2018-15454 has an EPSS score of 4.38% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-15454?

Upgrade adaptive security appliance software to 9.10.1.2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2018-15454

HIGHEPSS 90th pctl

8.6

CVSS v3

NVD

Description

A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload or trigger high CPU, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of SIP traffic. An attacker could exploit this vulnerability by sending SIP requests designed to specifically trigger this issue at a high rate across an affected device. Software updates that address this vulnerability are not yet available.

CWE-20Improper Input Validation

How to fix

Remediation Available

adaptive security appliance softwareNVD

Affected:>= 9.10, < 9.10.1.2Fixed in:9.10.1.2CVE-2018-15454derived from NVD

firepower threat defenseNVD

Affected:>= 6.2.3, < 6.2.3.7Fixed in:6.2.3.7CVE-2018-15454derived 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

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

4.38%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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 2024-11-21.