CVE-2026-86509

D-Link DIR-895L udhcpcd serverpacket.c sendACK stack-based overflow

Assigner: VulDB
Reserved: 07.09.2026 Published: 08.09.2026 Updated: 08.09.2026

A flaw has been found in D-Link DIR-895L A1_102b07. This impacts the function sendOffer/sendACK of the file udhcpcd/serverpacket.c of the component udhcpcd. This manipulation causes stack-based buffer overflow. The attack can only be done within the local network. The exploit has been published and may be used.

Metrics

CVSS Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CVSS Score: 9.6

Attack Vector	Adjacent Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CVSS Score: 9.6

Attack Vector	Adjacent Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.0

CVSS Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
CVSS Score: 8.3

Access Vector	Adjacent Network	Confidentiality Impact	Complete
Access Complexity	Low	Integrity Impact	Complete
Authentication	None	Availability Impact	Complete

CVSS 2.0

Product Status

Vendor	D-Link
Product	DIR-895L
Versions	Version A1_102b07 is affected

Vendor

D-Link

Product

DIR-895L

Versions

Version A1_102b07 is affected

Credits

tian (VulDB User) reporter

References

Problem Types