CVE-2006-4686

Buffer overflow in the Extensible Stylesheet Language Transformations (XSLT) processing in Microsoft XML Parser 2.6 and XML Core Services 3.0 through 6.0 allows remote attackers to execute arbitrary code via a crafted Web page.

Published: 2006-10-10 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-4686 is rated High Risk (68/100): CVSS High severity, with high exploitation likelihood (EPSS 32.51%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.08% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-4686

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 2026-04-24 28.43% 32.51% +4.08%
2 2025-05-29 28.08% 28.43% +0.35%
3 2025-03-30 — 28.08% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-4686

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2006-4686

OS Trackers for CVE-2006-4686

vendor priority summary link
alpine — CVE-2006-4686: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-4686

Affected software / configurations for CVE-2006-4686

Vendor Product Version Raw CPE
microsoft xml_core_services 3.0 cpe:2.3:a:microsoft:xml_core_services:3.0:*:*:*:*:*:*:*
microsoft xml_core_services 4.0 cpe:2.3:a:microsoft:xml_core_services:4.0:*:*:*:*:*:*:*
microsoft xml_core_services 6.0 cpe:2.3:a:microsoft:xml_core_services:6.0:*:*:*:*:*:*:*
microsoft xml_parser 2.6 cpe:2.3:a:microsoft:xml_parser:2.6:*:*:*:*:*:*:*

References for CVE-2006-4686

cvelogic Threat Intelligence