Is CVE-2006-4304 being actively exploited?

CVE-2006-4304 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-4304?

CVE-2006-4304 has a CVSS 2.0 base score of 10.0 (HIGH).

CVE-2006-4304

HIGH · CVSS 10.0EPSS 11.9%EU EUVD

Buffer overflow in the sppp driver in FreeBSD 4.11 through 6.1, NetBSD 2.0 through 4.0 beta before 20060823, and OpenBSD 3.8 and 3.9 before 20060902 allows remote attackers to cause a denial of service (panic), obtain sensitive information, and possibly execute arbitrary code via crafted Link Control Protocol (LCP) packets with an option length that exceeds the overall length, which triggers the overflow in (1) pppoe and (2) ippp. NOTE: this issue was originally incorrectly reported for the ppp driver.

Key facts

CVSS score: 10.0 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS score: 11.9% (96th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-4292)
Published: August 24, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-4292 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
netbsd / netbsd
netbsd / netbsd
netbsd / netbsd
openbsd / openbsd
openbsd / openbsd

References

ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-019.txt.asc
http://secunia.com/advisories/21587(Patch, Vendor Advisory)
http://secunia.com/advisories/21731(Patch, Vendor Advisory)
http://security.FreeBSD.org/advisories/FreeBSD-SA-06:18.ppp.asc(Vendor Advisory)
http://security.FreeBSD.org/patches/SA-06:18/ppp4x.patch
http://securitytracker.com/id?1016745
http://www.openbsd.org/errata.html#sppp(Patch)
http://www.openbsd.org/errata38.html#sppp(Patch)
http://www.securityfocus.com/bid/19684
https://exchange.xforce.ibmcloud.com/vulnerabilities/28562

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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