CVE-2017-3856 Details
A vulnerability in the web user interface of Cisco IOS XE 3.1 through 3.17 could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient resource handling by the affected software when the web user interface is under a high load. An attacker could exploit this vulnerability by sending a high number of requests to the web user interface of the affected software. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. To exploit this vulnerability, the attacker must have access to the management interface of the affected software, which is typically connected to a restricted management network. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the web user interface of the software is enabled. By default, the web user interface is not enabled. Cisco Bug IDs: CSCup70353.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2017-3856
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.86 Probability of exploitation activity being observed over the next 30 days (74th percentile)
CVSS score for CVE-2017-3856
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
7.5 High
Products affected by CVE-2017-3856
IOS XE 3.4.4sg
IOS XE 3.7.3e
IOS XE 3.4.2sg
IOS XE 3.5.1sq
IOS XE 3.6.0e
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
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CVE-2017-3856 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
PE 64 47.76%
KR 48 35.82%
TW 8 5.97%
US 8 5.97%
DO 3 2.24%
KE 1 0.75%
MA 1 0.75%
RU 1 0.75%

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CVE-2017-3856 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 67 88.16%
Education 8 10.53%
Technology 1 1.32%

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