Critical 10.0Published Sep 7, 2026

CVE-2026-86296D-Link DIR-822A udhcpcd serverpacket.c strcpy stack-based overflow

Updated under an hour ago (2026-10-19 07:50 UTC)

Does this affect you?

It affects D-Link DIR-822A. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for D-Link DIR-822A

Exploited in the last 30 days

A vulnerability was determined in D-Link DIR-822A A_101. This vulnerability affects the function strcpy of the file udhcpcd/serverpacket.c of the component udhcpcd. This manipulation causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

CVSS: 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-121, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Sep 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

D-Link DIR-822A d-link:dir-822a	A_101	CNA record

References

https://vuldb.com/vuln/399458vdb-entry, technical-description
https://vuldb.com/vuln/399458/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-86296third-party-advisory
https://vuldb.com/submit/906297third-party-advisory
https://tzh00203.notion.site/D-Link-DIR-822A-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80238b80e89e7c7c68f0exploit
https://www.dlink.com/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.