SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2009-0692

Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted…

EXPLOIT ✓HIGH 10.0EPSS 25.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 25.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.

CVSS 2.0
10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
25.78% probability · 98th percentile
Public exploits
1 in Exploit-DB · verified · first 27 July 2009
CISA KEV
Not listed
Weakness
CWE-119
Affected
isc/dhcp
Source
cret@cert.org
EPSS trend
0%15%30%26 October 2026: 25.78%26 October 202626 October 2026

EPSS 25.8% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-9265source ↗ISC DHCP dhclient < 3.1.2p1 - Remote Buffer Overflow (PoC)linux · Jon Oberheidedos27 July 2009yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.