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CVE Record

CVE-2018-0177: A vulnerability in the IP Version 4 (IPv4) processing code of Cisco IOS XE Software running on Cisco Cataly...

A vulnerability in the IP Version 4 (IPv4) processing code of Cisco IOS XE Software running on Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IPv4 packets. An attacker could exploit this vulnerability by sending specific IPv4 packets to an IPv4 address on an affected device. A successful exploit could allow the attacker to cause high CPU utilization, traceback messages, or a reload of the affected device that leads to a DoS condition. If the switch does not reboot when under attack, it would require manual intervention to reload the device. This vulnerability affects Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches that are running Cisco IOS XE Software Release 16.1.1 or later, until the first fixed release, and are configured with an IPv4 address. Cisco Bug IDs: CSCvd80714.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw can let an unauthenticated remote attacker disrupt certain Cisco Catalyst switches by sending specially crafted IPv4 traffic to an affected switch address. The business impact is network availability: high CPU, crash messages, or a switch reload may interrupt connected services. Exposure is limited to affected Catalyst 3850 and 3650 switches running vulnerable Cisco IOS XE releases and configured with an IPv4 address reachable by an attacker. Prioritize remediation for affected switches supporting critical sites, core access, or management paths. The issue is availability-focused, not described as data theft, but outages could affect business operations. Mitigation focus: Identify Catalyst 3850 and 3650 switches running Cisco IOS XE.; Check Cisco’s advisory for the applicable first fixed release.; Upgrade affected switches according to Cisco guidance and change-control requirements..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2018-0177 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aCisco IOS XECisco IOS XEListed
Weakness

CWE details

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Data Processing Errors

Data Processing Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.