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CVE-2018-0177

26
FAUCET Score

CVE-2018-0177 is a denial-of-service vulnerability in Cisco IOS XE Software affecting Cisco Catalyst 3850 and 3650 Series Switches. An unauthenticated, remote attacker can exploit this by sending specially crafted IPv4 packets, leading to high CPU utilization, traceback messages, or a device reload. Rated 7.5 HIGH on CVSS, it requires no user interaction and has a high impact on availability. There is no public exploit code, active exploitation, or significant community discussion reported for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
denali-16.3.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:denali-16.3.1:*:*:*:*:*:*:*
denali-16.3.3CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:denali-16.3.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.89%
Probability of exploitation in next 30 days
EPSS Percentile
89.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0389 is in the 81st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ipv4
Vendor Advisory
securityfocus.com / bid/103563
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040588
Third Party AdvisoryVDB Entry