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CVE-2018-0298

23
FAUCET Score

CVE-2018-0298 describes a buffer overflow vulnerability in the web UI of Cisco FXOS and UCS Fabric Interconnect Software, impacting Firepower 4100/9300 and UCS 6200/6300 Series devices. This high-severity vulnerability (CVSS 7.5) allows an unauthenticated, remote attacker to trigger a denial of service by sending a crafted HTTP/HTTPS packet to the management interface. While no public exploits (Metasploit, Nuclei, ExploitDB) are known and community discussion is minimal, the potential for a device reload makes it a significant concern for affected systems.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0\(2\), < 3.1\(3a\)aCPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
>= 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:*:*:*:*:*:*:*:*
>= 1.1, < 1.1.4.179CPE matchmatch criteria
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
>= 2.0, < 2.0.1.153CPE matchmatch criteria
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
1.98%
Probability of exploitation in next 30 days
EPSS Percentile
78.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0198 is in the 62nd percentile among its peer group of 51,553 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-20180620-fxos-dos
Vendor Advisory