Is CVE-2011-2749 being actively exploited?

CVE-2011-2749 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-2749?

CVE-2011-2749 has a CVSS 2.0 base score of 7.8 (HIGH).

CVE-2011-2749

HIGH · CVSS 7.8EPSS 38.8%EU EUVD

The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted BOOTP packet.

Key facts

CVSS score: 7.8 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-20
EPSS score: 38.8% (99th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-2724)
Published: August 15, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-2724 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
debian / debian linux
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp
isc / dhcp

and 42 more…

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761(Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065176.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2011-09/msg00014.html(Mailing List, Third Party Advisory)
http://secunia.com/advisories/45582(Third Party Advisory)
http://secunia.com/advisories/45595(Third Party Advisory)
http://secunia.com/advisories/45629(Third Party Advisory)
http://secunia.com/advisories/45639(Third Party Advisory)
http://secunia.com/advisories/45817(Third Party Advisory)
http://secunia.com/advisories/45918(Third Party Advisory)
http://secunia.com/advisories/46780(Third Party Advisory)
http://security.gentoo.org/glsa/glsa-201301-06.xml(Third Party Advisory)
http://securitytracker.com/id?1025918(Third Party Advisory, VDB Entry)
http://www.debian.org/security/2011/dsa-2292(Third Party Advisory)
http://www.isc.org/files/release-notes/DHCP%203.1-ESV-R3_0.html(Vendor Advisory)
http://www.isc.org/files/release-notes/DHCP%204.1-ESV-R3.html(Vendor Advisory)
http://www.isc.org/files/release-notes/DHCP%204.2.2_0.html(Vendor Advisory)
http://www.isc.org/software/dhcp/advisories/cve-2011-2748(Vendor Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2011:128(Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2011-1160.html(Third Party Advisory)
http://www.securityfocus.com/bid/49120(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/USN-1190-1(Third Party Advisory)
https://bugzilla.redhat.com/attachment.cgi?id=517665&action=diff(Issue Tracking, Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=729382(Issue Tracking, Patch, Third Party Advisory)
https://hermes.opensuse.org/messages/11695711(Third Party Advisory)

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

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