srvloc.sys in Novell Client for Windows before 4.91 SP3 allows remote attackers to cause an unspecified denial of service via a crafted packet to port 427 that triggers an access of pageable or invalid addresses using a higher interrupt request level (IRQL) than necessary.
Conclusion & alert: CVE-2006-6307 is rated Moderate Risk (48.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.57%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-07-24 | 1.29% | 1.57% | +0.28% |
| 2 | 2025-03-30 | 1.87% | 1.29% | -0.57% |
| 3 | 2025-03-29 | — | 1.87% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-6307: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-6307 |
| URL | Tags |
|---|---|
| http://secunia.com/advisories/23244 | |
| http://www.securityfocus.com/bid/21430 | Patch Vendor Advisory |
| http://www.vupen.com/english/advisories/2006/4840 | |
| https://secure-support.novell.com/KanisaPlatform/Publishing/859/3480790_f.SAL_Public.html | Patch Vendor Advisory |