Is CVE-2018-15388 in the CISA KEV catalog?

No. CVE-2018-15388 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-15388?

CVE-2018-15388 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2018-15388?

CVE-2018-15388 has an EPSS score of 1.97% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-15388?

Upgrade adaptive security appliance software to 9.9.2.50 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2018-15388

HIGHEPSS 78th pctl

8.6

CVSS v3

NVD

Description

A vulnerability in the WebVPN login process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause increased CPU utilization on an affected device. The vulnerability is due to excessive processing load for existing WebVPN login operations. An attacker could exploit this vulnerability by sending multiple WebVPN login requests to the device. A successful exploit could allow the attacker to increase CPU load on the device, resulting in a denial of service (DoS) condition.

CWE-400Resource Exhaustion

How to fix

Remediation Available

adaptive security appliance softwareNVD

Affected:>= 9.9, < 9.9.2.50Fixed in:9.9.2.50CVE-2018-15388derived from NVD

Affected:< 9.4.4.34Fixed in:9.4.4.34CVE-2018-15388derived from NVD

firepower threat defenseNVD

Affected:< 6.2.3.12Fixed in:6.2.3.12CVE-2018-15388derived 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

1.97%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Vendor Advisory1

tools.cisco.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

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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.