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CVE-2018-0302

23
FAUCET Score

CVE-2018-0302 describes a buffer overflow vulnerability in the CLI parser of Cisco FXOS Software and UCS Fabric Interconnect Software, affecting products like Firepower 4100/9300 Series and UCS 6100/6200/6300 Series Fabric Interconnects. This high-severity vulnerability (CVSS 7.8) allows an authenticated, local attacker to execute arbitrary code with root privileges by providing excessively long input due to improper input validation. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.1\(1k\)aCPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:3.1\(1k\)a:*:*:*:*:*:*:*
>= 1.1, < 1.1.4.169CPE matchmatch criteria
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
>= 2.0, < 2.0.1.135CPE matchmatch criteria
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 75th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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-20180620-fxos-ace
Vendor Advisory