CVE-2004-0391

CVE-2004-0391 is a critical-severity vulnerability in Cisco Wireless Lan Solution Engine with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Cisco Wireless LAN Solution Engine (WLSE) 2.0 through 2.5 and Hosting Solution Engine (HSE) 1.7 through 1.7.3 have a hardcoded username and password, which allows remote attackers to add new users, modify existing users, and change configuration.

Frequently asked questions

What is CVE-2004-0391?
Cisco Wireless LAN Solution Engine (WLSE) 2.0 through 2.5 and Hosting Solution Engine (HSE) 1.7 through 1.7.3 have a hardcoded username and password, which allows remote attackers to add new users, modify existing users, and change configuration.
How severe is CVE-2004-0391?
CVE-2004-0391 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-0391 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0391?
CVE-2004-0391 primarily affects Cisco Wireless Lan Solution Engine. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0391?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2004-0391 published?
CVE-2004-0391 was published on 2004-06-01 and last updated on 2026-06-16.

References

Affected products (11)

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