What is CVE-2018-0278?

CVE-2018-0278 is a medium-severity vulnerability in Cisco Secure Firewall Management Center, classified under Information Disclosure. CVSS score: 6.5/10. Published 2018-05-02.

How severe is CVE-2018-0278?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2018-0278 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Cisco Secure Firewall Management Center

CVE-2018-0278

A vulnerability in the management console of Cisco Firepower System Software could allow an unauthenticated, remote attacker to access sensitive data about the system. The vulnerability is due to improper cross-origin domain protections for the WebSocket protocol. An attacker could exploit this vulnerability by convincing a user to visit a malicious website designed to send requests to the affected application while the user is logged into the application with an active session cookie. A successful exploit could allow the attacker to retrieve policy or configuration information from the affected software and to perform another attack against the management console. Cisco Bug IDs: CSCvh68311.

Vulnerability class: Information Disclosure

Published 2018-05-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.021 (81.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.021 · change: -0.001

Affected products

Cisco Secure Firewall Management Center — versions 6.1.0, 6.2.0, 6.2.1
Cisco Firepower System Software — versions Cisco Firepower System Software

Weakness classification (CWE)

Public proof-of-concept exploits

s-index/dora

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502… (Vendor Advisory)
www.securityfocus.com/bid/104122 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-0278?: CVE-2018-0278 is a medium-severity vulnerability in Cisco Secure Firewall Management Center, classified under Information Disclosure. CVSS score: 6.5/10. Published 2018-05-02.
How severe is CVE-2018-0278?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-0278 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.