CVE•Published 2017-02-03•Modified 2026-05-13•0 articles on news•6 live references•NVD data

CVE-2017-3820Cisco · Ios_xe

Vulnerability data via NVD (ingested)

CVSS v3.1

6.5

MEDIUM

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

EPSS percentile

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Weaknesses (CWE)

CWE-665Improper Initialization

Description

A vulnerability in Simple Network Management Protocol (SNMP) functions of Cisco ASR 1000 Series Aggregation Services Routers running Cisco IOS XE Software Release 3.13.6S, 3.16.2S, or 3.17.1S could allow an authenticated, remote attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. More Information: CSCux68796. Known Affected Releases: 15.5(3)S2.1 15.6(1)S1.1. Known Fixed Releases: 15.4(3)S6.1 15.4(3)S6.2 15.5(3)S2.2 15.5(3)S3 15.6(0.22)S0.23 15.6(1)S2 16.2(0.295) 16.3(0.94) 15.5.3S3.

Timeline

Published 2017-02-03

Modified 2026-05-13

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2017-3820

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · OS

os:"Ios Xe"

Hosts Shodan identified as running Ios Xe.

More intel sources (5)

Shodan report

vuln:CVE-2017-3820

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2017-3820