HIGH
dhcp: denial of service flaws
Published Aug 15, 2011
7.8
HIGHCVSS 2.0
EPSS 38.77%
Description
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.
Affected products
No data.
Configuration 1
OR
- 3.0
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.2
- 3.0.2
- 3.0.2
- 3.0.2
- 3.0.2
- 3.0.3
- 3.0.3
- 3.0.3
- 3.0.4
- 3.0.4
- 3.0.4
- 3.0.4
- 3.0.4
- 3.0.5
- 3.0.5
- 3.0.6
- 3.1
- 3.1-esv
- 3.1.0
- 3.1.0
- 3.1.0
- 3.1.0
- 3.1.0
- 3.1.0
- 3.1.0
- 3.1.1
- 3.1.1
- 3.1.1
- 3.1.2
- 3.1.2
- 3.1.2
- 3.1.3
- 3.1.3
- 3.1.3
- 4.0
- 4.0-esv
- 4.0.0
- 4.0.1
- 4.0.1
- 4.0.1
- 4.0.2
- 4.0.2
- 4.0.2
- 4.0.2
- 4.0.2
- 4.0.3
- 4.0.3
- 4.0.3
- 4.1-esv
- 4.1-esv
- 4.1-esv
- 4.1-esv
- 4.1-esv
- 4.1-esv
- 4.1.0
- 4.1.1
- 4.1.1
- 4.1.1
- 4.1.1
- 4.1.1
- 4.1.2
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.1
- 4.2.1
- 4.2.1
Configuration 2
OR
- 5.0
- 6.0
- 7.0
Configuration 3
OR
- 8.04
- 10.04
- 10.10
- 11.04
No data.
Red Hat Enterprise Linux 4
dhcp-7:3.0.1-68.el4
Fixed · RHSA-2011:1160
Red Hat Enterprise Linux 5
dhcp-12:3.0.5-29.el5_7.1
Fixed · RHSA-2011:1160
Red Hat Enterprise Linux 6
dhcp-12:4.1.1-19.P1.el6_1.1
Fixed · RHSA-2011:1160
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | dhcp-7:3.0.1-68.el4 | Fixed | RHSA-2011:1160 |
| Red Hat Enterprise Linux 5 | dhcp-12:3.0.5-29.el5_7.1 | Fixed | RHSA-2011:1160 |
| Red Hat Enterprise Linux 6 | dhcp-12:4.1.1-19.P1.el6_1.1 | Fixed | RHSA-2011:1160 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
38.77% 0.38775
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.38775
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 38.77% (0.38775) | 98.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 38.77% (0.38775) | 98.39th | v5 (v2026.06.15) |
| Aug 12, 2025 | 75.34% (0.75340) | 98.83th | v4 (v2025.03.14) |
| Mar 29, 2025 | 83.99% (0.83993) | 99.13th | v4 (v2025.03.14) |
| Mar 17, 2025 | 82.92% (0.82915) | 99.21th | v4 (v2025.03.14) |
| Dec 17, 2024 | 30.55% (0.30551) | 96.95th | v3 (v2023.03.01) |
| Dec 12, 2024 | 95.26% (0.95257) | 99.43th | v3 (v2023.03.01) |
| May 14, 2023 | 95.20% (0.95199) | 98.94th | v3 (v2023.03.01) |
| Mar 15, 2023 | 96.06% (0.96059) | 99.11th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.87% (0.96870) | 99.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 26.38% (0.26383) | 97.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 26.38% (0.26383) | 95.72th | v2 (v2022.01.01) |
Weaknesses (1)
References (27)
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 x_refsource_CONFIRMThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065176.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2011-09/msg00014.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://secunia.com/advisories/45582 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/45595 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/45629 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/45639 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/45817 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/45918 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/46780 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://security.gentoo.org/glsa/glsa-201301-06.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://securitytracker.com/id?1025918 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.debian.org/security/2011/dsa-2292 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.isc.org/files/release-notes/DHCP%203.1-ESV-R3_0.html x_refsource_CONFIRMVendor Advisory
- http://www.isc.org/files/release-notes/DHCP%204.1-ESV-R3.html x_refsource_CONFIRMVendor Advisory
- http://www.isc.org/files/release-notes/DHCP%204.2.2_0.html x_refsource_CONFIRMVendor Advisory
- http://www.isc.org/software/dhcp/advisories/cve-2011-2748 x_refsource_CONFIRMVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:128 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-1160.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/bid/49120 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-1190-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-2749 Vendor Advisory
- https://bugzilla.redhat.com/attachment.cgi?id=517665&action=diff x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=729382 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://hermes.opensuse.org/messages/11695711 vendor-advisoryx_refsource_SUSEThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2011-2749
- https://www.cve.org/CVERecord?id=CVE-2011-2749
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 15, 2011
Updated Aug 6, 2024
Reserved Jul 14, 2011
Link CVE-2011-2749
CISA Vulnrichment
Updated n/a