CVE-2006-4098

CVE-2006-4098 is a critical-severity vulnerability in Cisco Secure Access Control Server with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Stack-based buffer overflow in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows before 4.1 and ACS Solution Engine before 4.1 allows remote attackers to execute arbitrary code via a crafted RADIUS Accounting-Request packet.

Frequently asked questions

What is CVE-2006-4098?
Stack-based buffer overflow in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows before 4.1 and ACS Solution Engine before 4.1 allows remote attackers to execute arbitrary code via a crafted RADIUS Accounting-Request packet.
How severe is CVE-2006-4098?
CVE-2006-4098 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2006-4098 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4098?
CVE-2006-4098 primarily affects Cisco Secure Access Control Server. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4098?
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-2006-4098 published?
CVE-2006-4098 was published on 2006-12-31 and last updated on 2026-06-16.

References

Affected products (15)

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