8.6

CVE-2018-15454: cisco adaptive_security_appliance_software Improper Input Validation

CVSS: 8.6v3.0HighModified
Published 01-11-2018Last modified 26-11-2024
Open JSON

Vulnerability summary

CVE-2018-15454 is a high (CVSS 8.6) Improper Input Validation vulnerability in cisco adaptive_security_appliance_software. EPSS estimates a 4.38% chance of exploitation in the next 30 days, higher than 91.1% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.0 (CVE.org)
EPSS score
4.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-11-2018
    PublishedVulnerability first disclosed.
  2. 26-11-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

4.38%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.38% on 18-09-2026

18-09-202618-10-2026
EPSS score
4.38%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco3 products

1 vendor · 3 products

References

3 links