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CVE-2004-0391

27
FAUCET Score

CVE-2004-0391 describes a critical vulnerability in Cisco Wireless LAN Solution Engine (WLSE) versions 2.0 through 2.5 and Hosting Solution Engine (HSE) versions 1.7 through 1.7.3, stemming from a hardcoded username and password. This flaw allows unauthenticated remote attackers to gain full administrative control, enabling them to add or modify users and alter device configurations. With a CVSS score of 10.0, this vulnerability presents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. Despite its age and severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.0CPE matchmatch criteria
cpe:2.3:a:cisco:wireless_lan_solution_engine:2.0:*:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:a:cisco:wireless_lan_solution_engine:2.1:*:*:*:*:*:*:*
2.2CPE matchmatch criteria
cpe:2.3:a:cisco:wireless_lan_solution_engine:2.2:*:*:*:*:*:*:*
2.3CPE matchmatch criteria
cpe:2.3:a:cisco:wireless_lan_solution_engine:2.3:*:*:*:*:*:*:*
2.4CPE matchmatch criteria
cpe:2.3:a:cisco:wireless_lan_solution_engine:2.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.58%
Probability of exploitation in next 30 days
EPSS Percentile
90.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0458 is in the 84th percentile among its peer group of 51,455 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

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/15773
ciac.org / ciac/bulletins/o-111.shtml
PatchVendor Advisory
cisco.com / warp/public/707/cisco-sa-20040407-username.shtml
PatchVendor Advisory
kb.cert.org / vuls/id/659228
PatchThird Party AdvisoryUS Government Resource
securityfocus.com / bid/10076