CVE-2026-86296

CRITICAL 10.0

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

CVSS Score

10.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	d-link
Product	dir-822a
Published	Sep 7, 2026
Last Updated	Sep 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

D-Link / DIR-822A

A_101

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/399458 vuldb.com: https://vuldb.com/vuln/399458/cti vuldb.com: https://vuldb.com/cve/CVE-2026-86296 vuldb.com: https://vuldb.com/submit/906297 tzh00203.notion.site: https://tzh00203.notion.site/D-Link-DIR-822A-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80238b80e89e7c7c68f0 dlink.com: https://www.dlink.com/

Credits

🔍 tian (VulDB User)