The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS…
Priority LOW 33CWE-399Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.
Why it matters now
EPSS 0.03414 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 102
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:isc:dhcp:*:p1:*:*:*:*:*:* | up to 4.2.3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel1:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel10:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel11:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel12:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel13:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel14:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel15:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel16:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
- cpe:2.3:a:isc:dhcp:*:p1:*:*:*:*:*:* Versions up to 4.2.3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel1:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel10:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel11:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel12:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel13:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel14:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel15:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel16:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
Show 92 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel18:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel19:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel2:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel20:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel21:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel22:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel23:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel24:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel3:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel4:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel5:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel6:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel7:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel8:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel9:*:*:*:*:* | 3.0 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc1:*:*:*:*:*:* | 3.0 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc1:patchlevel1:*:*:*:*:* | 3.0 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc10:*:*:*:*:*:* | 3.0 rc10 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc11:*:*:*:*:*:* | 3.0 rc11 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc12:*:*:*:*:*:* | 3.0 rc12 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc2:*:*:*:*:*:* | 3.0 rc2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc2:patchlevel1:*:*:*:*:* | 3.0 rc2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc3:*:*:*:*:*:* | 3.0 rc3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc4:*:*:*:*:*:* | 3.0 rc4 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc5:*:*:*:*:*:* | 3.0 rc5 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc6:*:*:*:*:*:* | 3.0 rc6 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc7:*:*:*:*:*:* | 3.0 rc7 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc8:*:*:*:*:*:* | 3.0 rc8 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc8:patchlevel1:*:*:*:*:* | 3.0 rc8 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0:rc9:*:*:*:*:*:* | 3.0 rc9 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:*:*:*:*:*:*:* | 3.0.1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc1:*:*:*:*:*:* | 3.0.1 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc10:*:*:*:*:*:* | 3.0.1 rc10 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc11:*:*:*:*:*:* | 3.0.1 rc11 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc12:*:*:*:*:*:* | 3.0.1 rc12 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc13:*:*:*:*:*:* | 3.0.1 rc13 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc14:*:*:*:*:*:* | 3.0.1 rc14 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc2:*:*:*:*:*:* | 3.0.1 rc2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc3:*:*:*:*:*:* | 3.0.1 rc3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc4:*:*:*:*:*:* | 3.0.1 rc4 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc5:*:*:*:*:*:* | 3.0.1 rc5 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc6:*:*:*:*:*:* | 3.0.1 rc6 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc7:*:*:*:*:*:* | 3.0.1 rc7 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc8:*:*:*:*:*:* | 3.0.1 rc8 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.1:rc9:*:*:*:*:*:* | 3.0.1 rc9 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.2:*:*:*:*:*:*:* | 3.0.2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.2:b1:*:*:*:*:*:* | 3.0.2 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.2:rc1:*:*:*:*:*:* | 3.0.2 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.2:rc2:*:*:*:*:*:* | 3.0.2 rc2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.2:rc3:*:*:*:*:*:* | 3.0.2 rc3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.3:*:*:*:*:*:*:* | 3.0.3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.3:b1:*:*:*:*:*:* | 3.0.3 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.3:b2:*:*:*:*:*:* | 3.0.3 b2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.3:b3:*:*:*:*:*:* | 3.0.3 b3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.4:*:*:*:*:*:*:* | 3.0.4 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.4:b1:*:*:*:*:*:* | 3.0.4 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.4:b2:*:*:*:*:*:* | 3.0.4 b2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.4:b3:*:*:*:*:*:* | 3.0.4 b3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.4:rc1:*:*:*:*:*:* | 3.0.4 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.5:*:*:*:*:*:*:* | 3.0.5 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.5:rc1:*:*:*:*:*:* | 3.0.5 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.0.6:rc1:*:*:*:*:*:* | 3.0.6 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.1.0:*:*:*:*:*:*:* | 3.1.0 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.1.0:a1:*:*:*:*:*:* | 3.1.0 a1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.1.0:a2:*:*:*:*:*:* | 3.1.0 a2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.1.0:a3:*:*:*:*:*:* | 3.1.0 a3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.1.0:b1:*:*:*:*:*:* | 3.1.0 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:3.1.0:b2:*:*:*:*:*:* | 3.1.0 b2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:* | 4.0.0 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.0.0:a1:*:*:*:*:*:* | 4.0.0 a1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.0.0:a2:*:*:*:*:*:* | 4.0.0 a2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.0.0:a3:*:*:*:*:*:* | 4.0.0 a3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.0.0:b1:*:*:*:*:*:* | 4.0.0 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.0.0:b2:*:*:*:*:*:* | 4.0.0 b2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.0.0:b3:*:*:*:*:*:* | 4.0.0 b3 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.1.0:a1:*:*:*:*:*:* | 4.1.0 a1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.1.0:a2:*:*:*:*:*:* | 4.1.0 a2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.1.0:b1:*:*:*:*:*:* | 4.1.0 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.0:*:*:*:*:*:*:* | 4.2.0 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:* | 4.2.0 a1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:* | 4.2.0 a2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:* | 4.2.0 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:* | 4.2.0 b2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:* | 4.2.0 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.1:*:*:*:*:*:*:* | 4.2.1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:* | 4.2.1 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:* | 4.2.1 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.2:*:*:*:*:*:*:* | 4.2.2 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:* | 4.2.2 b1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:* | 4.2.2 rc1 | Vulnerable | ISC |
| cpe:2.3:a:isc:dhcp:4.2.3:*:*:*:*:*:*:* | 4.2.3 | Vulnerable | ISC |
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel18:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel19:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel2:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel20:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel21:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel22:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel23:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel24:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel3:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel4:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel5:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel6:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel7:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel8:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel9:*:*:*:*:* Versions 3.0 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc1:*:*:*:*:*:* Versions 3.0 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc1:patchlevel1:*:*:*:*:* Versions 3.0 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc10:*:*:*:*:*:* Versions 3.0 rc10 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc11:*:*:*:*:*:* Versions 3.0 rc11 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc12:*:*:*:*:*:* Versions 3.0 rc12 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc2:*:*:*:*:*:* Versions 3.0 rc2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc2:patchlevel1:*:*:*:*:* Versions 3.0 rc2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc3:*:*:*:*:*:* Versions 3.0 rc3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc4:*:*:*:*:*:* Versions 3.0 rc4 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc5:*:*:*:*:*:* Versions 3.0 rc5 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc6:*:*:*:*:*:* Versions 3.0 rc6 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc7:*:*:*:*:*:* Versions 3.0 rc7 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc8:*:*:*:*:*:* Versions 3.0 rc8 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc8:patchlevel1:*:*:*:*:* Versions 3.0 rc8 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0:rc9:*:*:*:*:*:* Versions 3.0 rc9 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc1:*:*:*:*:*:* Versions 3.0.1 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc10:*:*:*:*:*:* Versions 3.0.1 rc10 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc11:*:*:*:*:*:* Versions 3.0.1 rc11 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc12:*:*:*:*:*:* Versions 3.0.1 rc12 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc13:*:*:*:*:*:* Versions 3.0.1 rc13 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc14:*:*:*:*:*:* Versions 3.0.1 rc14 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc2:*:*:*:*:*:* Versions 3.0.1 rc2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc3:*:*:*:*:*:* Versions 3.0.1 rc3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc4:*:*:*:*:*:* Versions 3.0.1 rc4 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc5:*:*:*:*:*:* Versions 3.0.1 rc5 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc6:*:*:*:*:*:* Versions 3.0.1 rc6 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc7:*:*:*:*:*:* Versions 3.0.1 rc7 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc8:*:*:*:*:*:* Versions 3.0.1 rc8 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.1:rc9:*:*:*:*:*:* Versions 3.0.1 rc9 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.2:*:*:*:*:*:*:* Versions 3.0.2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.2:b1:*:*:*:*:*:* Versions 3.0.2 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.2:rc1:*:*:*:*:*:* Versions 3.0.2 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.2:rc2:*:*:*:*:*:* Versions 3.0.2 rc2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.2:rc3:*:*:*:*:*:* Versions 3.0.2 rc3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.3:*:*:*:*:*:*:* Versions 3.0.3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.3:b1:*:*:*:*:*:* Versions 3.0.3 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.3:b2:*:*:*:*:*:* Versions 3.0.3 b2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.3:b3:*:*:*:*:*:* Versions 3.0.3 b3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.4:*:*:*:*:*:*:* Versions 3.0.4 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.4:b1:*:*:*:*:*:* Versions 3.0.4 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.4:b2:*:*:*:*:*:* Versions 3.0.4 b2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.4:b3:*:*:*:*:*:* Versions 3.0.4 b3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.4:rc1:*:*:*:*:*:* Versions 3.0.4 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.5:*:*:*:*:*:*:* Versions 3.0.5 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.5:rc1:*:*:*:*:*:* Versions 3.0.5 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.0.6:rc1:*:*:*:*:*:* Versions 3.0.6 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.1.0:a1:*:*:*:*:*:* Versions 3.1.0 a1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.1.0:a2:*:*:*:*:*:* Versions 3.1.0 a2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.1.0:a3:*:*:*:*:*:* Versions 3.1.0 a3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.1.0:b1:*:*:*:*:*:* Versions 3.1.0 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:3.1.0:b2:*:*:*:*:*:* Versions 3.1.0 b2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.0.0:a1:*:*:*:*:*:* Versions 4.0.0 a1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.0.0:a2:*:*:*:*:*:* Versions 4.0.0 a2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.0.0:a3:*:*:*:*:*:* Versions 4.0.0 a3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.0.0:b1:*:*:*:*:*:* Versions 4.0.0 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.0.0:b2:*:*:*:*:*:* Versions 4.0.0 b2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.0.0:b3:*:*:*:*:*:* Versions 4.0.0 b3 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.1.0:a1:*:*:*:*:*:* Versions 4.1.0 a1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.1.0:a2:*:*:*:*:*:* Versions 4.1.0 a2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.1.0:b1:*:*:*:*:*:* Versions 4.1.0 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.0:*:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:* Versions 4.2.0 a1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:* Versions 4.2.0 a2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:* Versions 4.2.0 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:* Versions 4.2.0 b2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:* Versions 4.2.0 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:* Versions 4.2.1 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:* Versions 4.2.1 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.2:*:*:*:*:*:*:* Versions 4.2.2 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:* Versions 4.2.2 b1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:* Versions 4.2.2 rc1 Vulnerable ·ISC
- cpe:2.3:a:isc:dhcp:4.2.3:*:*:*:*:*:*:* Versions 4.2.3 Vulnerable ·ISC
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2011-4868
- 2026-10-03 Alias added: GHSA-q3c7-f665-h5rw
References
More ISC Dhcp vulnerabilities
- TI-2011-00858 dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and… CVSS 2.0HIGH 7.5
- TI-2017-02364 Failure to properly clean up closed OMAPI connections can exhaust available sockets CVSS 3.1HIGH 7.5
- TI-2015-07072 ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote… CVSS 3.0MEDIUM 6.5
- TI-2016-02318 ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the… CVSS 3.1MEDIUM 5.9
- TI-2009-00661 Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC… CVSS 2.0HIGH 10.0
- TI-2010-02068 ISC DHCP 4.1 before 4.1.1-P1 and 4.0 before 4.0.2-P1 allows remote attackers to cause a… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2011-4868 · CVE Program
- CVE-2011-4868 · NVD
- FIRST EPSS
- GHSA-q3c7-f665-h5rw · GitHub Advisory Database · CC BY 4.0
- CVE-2011-4868 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences