CVE-2016-1504

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash...

7.5 HighFix available

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

2.90%Up 1.6 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Record: CVE-2016-1504
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Record: CVE-2016-1504
Updated: 2026-11-02

EUVDEUVD-2016-2602 No score

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Record: EUVD-2016-2602
Updated: 2026-11-03

GitHub AdvisoriesGHSA-f982-2cvq-99qg 7.5

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash...

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Record: GHSA-f982-2cvq-99qg
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-119
Updated: 2026-11-02

OSV 7.5

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Record: CVE-2016-1504
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2016-1504 7.5

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Record: DEBIAN-CVE-2016-1504
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2016-1504 7.5

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

Record: UBUNTU-CVE-2016-1504
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVMGASA-2016-0034 No score

Updated dhcpcd packages fix security vulnerability

Possible heap overflow in dhcpcd before 6.10.0 caused by malformed dhcp responses due to incorrect option length values (CVE-2016-1503).

Possible invalid read in dhcpcd before 6.10.0 caused by malformed dhcp responses can lead to a crash (CVE-2016-1504).

The dhcpcd package has been updated to version 6.10.0 which fixes these issues and has several other bug fixes and enhancements.

Record: MGASA-2016-0034
Updated: 2026-11-02

Affected products

dhcpcd project dhcpcd

Affected packages

Affected packages
Package	Affected	Fixed
`dhcpcd5` Debian:12	before 6.10.1-1	6.10.1-1
`dhcpcd` Mageia:5 From an advisory covering 2 CVEs	before 6.10.0-1.mga5	6.10.0-1.mga5
`dhcpcd5` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 5.5.6-16.0.5-1ubuntu16.0.5-1.16.0.5-2build0.14.04.16.0.5-2+deb8u1build0.14.04.1~esm1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-1504 is a high vulnerability (CVSS 7.5) in Dhcpcd Project Dhcpcd, published January 21, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.90%, the 87th percentile. Fixed in dhcpcd5 6.10.1-1.

References

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