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CVE-2018-0174

68
FAUCET Score

CVE-2018-0174 is a high-severity denial-of-service vulnerability affecting Cisco IOS and IOS XE Software, as well as Rockwell Automation products. It arises from incomplete input validation of DHCPv4 option 82 information, allowing an unauthenticated, remote attacker to cause a device reload. With a CVSS score of 8.6, this vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability. Notably, this CVE is listed in the KEV catalog, indicating active exploitation, despite a lack of public exploit code or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
12.2\(33\)sre7aCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2\(33\)sre7a:*:*:*:*:*:*:*
12.2\(33\)sre7aCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:12.2\(33\)sre7a:*:*:*:*:*:*:*
<= 15.2\(4a\)ea5CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
<= 15.2\(4a\)ea5CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
<= 15.2\(6\)e0aCPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.76%
Probability of exploitation in next 30 days
EPSS Percentile
94.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Mar 3, 2022
This CVE's current EPSS score of 0.0776 is in the 90th percentile among its peer group of 51,506 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 (4)

bindvendor investigatingvia llm_extracted
ciscovendor investigatingvia nvd_reference
View patch
kerasvendor investigatingvia llm_extracted
mitelvendor investigatingvia llm_extracted

Vendor Advisories (3)

mitelllm-mitel-4f25cadee32bec71HIGH

[R1] Cisco IOS and IOS XE Multiple Memory Corruption Vulnerabilities

Mar 28, 2018
kerasllm-keras-c3c2f4c06ecd4833HIGH

[R1] Cisco IOS and IOS XE Multiple Memory Corruption Vulnerabilities

Mar 28, 2018
bindllm-bind-7e27746f370afb5dHIGH

Cisco IOS and IOS XE Multiple Memory Corruption Vulnerabilities

Mar 28, 2018

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
ics-cert.us-cert.gov / advisories/ICSA-18-107-04
Third Party AdvisoryUS Government Resource
ics-cert.us-cert.gov / advisories/ICSA-18-107-05
Third Party AdvisoryUS Government Resource
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr3
Vendor Advisory
tenable.com / security/research/tra-2018-06
Third Party Advisory
securityfocus.com / bid/103554
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1040591
Broken LinkThird Party AdvisoryVDB Entry