CVE-2018-15387: cisco cisco sd-wan solution Improper Input Validation
Vulnerability summary
CVE-2018-15387 is a critical (CVSS 9.8) Improper Input Validation vulnerability in cisco cisco sd-wan solution. EPSS estimates a 1.10% chance of exploitation in the next 30 days, higher than 65% of scored vulnerabilities.
Timeline
- 05-10-2018PublishedVulnerability first disclosed.
- 26-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass certificate validation on an affected device. The vulnerability is due to improper certificate validation. An attacker could exploit this vulnerability by supplying a system image signed with a crafted certificate to an affected device, bypassing the certificate validation. An exploit could allow an attacker to deploy a crafted system image.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.10%
Chance of exploitation in the next 30 days
Percentile
65%
Versus all other CVEs
30-day change
0.00 pp
From 1.10% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-295Improper Certificate ValidationThe product does not validate, or incorrectly validates, a certificate.
Affected systems
Cisco2 products
- cisco sd-wan solutionn/a
- sd-wan≥ 17.2.0, < 17.2.8 | 18.3.0
1 vendor · 2 products
References
2 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-sd-wan-bypassVendor AdvisoryX Refsource CISCO