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CVE-2026-86509

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

CVSS 4.0 9.4 CRITICALCVSS 3.1 9.6 CRITICALCVSS 3.0 9.6 CRITICALCVSS 2.0 8.3 Check source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-86509

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

Exploitation and risk

Source status

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cve-program · CVE-2026-86509

Published

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

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.

Source published
8 Sep 2026 00:45:14 UTC
Source modified
11 Sep 2026 20:34:46 UTC
Saved here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · 9.4 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 3.1 · 9.6 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 3.0 · 9.6 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 2.0 · 8.3 AV:A/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

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Sources read 13 Nov 18:29 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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