Critical severity · published Sep 8, 2026
CVE-2026-86509
D-Link DIR-895L udhcpcd serverpacket.c sendACK stack-based overflow
9.6
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
DIR-895L · D-Link
A1_102b07 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86509
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86509
tzh00203.notion.site
https://tzh00203.notion.site/D-Link-DIR-895L-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80dc8140e1502e4814d0
vuldb.com
https://vuldb.com/cve/CVE-2026-86509
vuldb.com
https://vuldb.com/submit/906298
vuldb.com
https://vuldb.com/vuln/399662
vuldb.com
https://vuldb.com/vuln/399662/cti
www.dlink.com
https://www.dlink.com/
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